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20
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1 /* navigation_ie -- JS library for digilib (IE version)
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2
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3 Digital Image Library servlet components
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4
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5 Copyright (C) 2001, 2002 Christian Luginbuehl (luginbuehl@student.unibe.ch)
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6
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7 This program is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2 of the License, or (at your
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10 option) any later version.
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11
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12 Please read license.txt for the full details. A copy of the GPL
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13 may be found at http://www.gnu.org/copyleft/lgpl.html
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program; if not, write to the Free Software
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 */
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20
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21 // these two global variables have to be initialised before the frist use of the functions below
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22 // to fill in the attributes you can use the function initPicture provided below
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23 // - array with all attributes
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24 var att = new Array();
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25
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26 // - variable to store the path to the frame, in which the pictures should be created
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27 var whichFrame = parent.mainFrame;
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28
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29 // give a name to the window containing digilib - this way one can test if there is already a
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30 // digilib-window open and replace the contents of it (ex. digicat)
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31 window.name = "digilib";
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32
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33 // function that launches the ScaleServlet
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34 // the different detailGrades:
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35 // 0 -> back, next, page
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36 // 1 -> zoomout
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37 // 2 -> zoomarea, zoompoint, moveto, scaledef
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38
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39 function loadPicture(detailGrade, keepArea) {
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40
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41 // alert("wx: " + att[5] + "\tww: " + att[7] + "\nwy: " + att[6] + "\twh: " + att[8]);
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42
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43 // sorry about that, but IE needs to have a document body to calc the frames width and height
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44 whichFrame.document.open();
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45 whichFrame.document.write('<html><head></head><body bgcolor="#666666" topmargin="10" leftmargin="10" marginwidth="10" magrinheight="10">');
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46
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47 var newPicture = "http://" + location.host + "/docuserver/digitallibrary/servlet/Scaler/"
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48 newPicture += att[0] + "?" + "pn=" + att[1] + "&ws=" + att[2];
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49 newPicture += "&dw=" + (whichFrame.document.body.clientWidth-30) + "&dh=" + (whichFrame.document.body.clientHeight-30);
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50 newPicture += "&mo=" + att[3];
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51
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52 if (detailGrade == 0) {
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53 att[4] = "0/0";
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54 }
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55
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56 if ((detailGrade == 1) || (detailGrade == 0 && !keepArea)) {
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57 att[5] = 0;
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58 att[6] = 0;
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59 att[7] = 1;
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60 att[8] = 1;
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61 }
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62 newPicture += "&wx=" + att[5] + "&wy=" + att[6] + "&ww=" + att[7] + "&wh=" + att[8];
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63
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64 whichFrame.document.write('<div ID="lay1" style="position:absolute; left:10; top:10; visibility:visible"><img name="pic" src="' + newPicture + '"></div>');
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65 whichFrame.document.write('<div ID="dot0" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark1.gif"></div>');
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66 whichFrame.document.write('<div ID="dot1" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark2.gif"></div>');
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67 whichFrame.document.write('<div ID="dot2" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark3.gif"></div>');
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68 whichFrame.document.write('<div ID="dot3" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark4.gif"></div>');
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69 whichFrame.document.write('<div ID="dot4" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark5.gif"></div>');
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70 whichFrame.document.write('<div ID="dot5" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark6.gif"></div>');
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71 whichFrame.document.write('<div ID="dot6" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark7.gif"></div>');
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72 whichFrame.document.write('<div ID="dot7" style="position:absolute; left:-20; top:100; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/mark8.gif"></div>');
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73 whichFrame.document.write('<div ID="eck1" style="position:absolute; left:-20; top:120; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/olinks.gif"></div>');
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74 whichFrame.document.write('<div ID="eck2" style="position:absolute; left:-20; top:140; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/orechts.gif"></div>');
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75 whichFrame.document.write('<div ID="eck3" style="position:absolute; left:-20; top:160; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/ulinks.gif"></div>');
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76 whichFrame.document.write('<div ID="eck4" style="position:absolute; left:-20; top:180; visibility:hidden"><img src="http://' + location.host + '/docuserver/digitallibrary/urechts.gif"></div>');
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77
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78 whichFrame.document.write('</body></html>');
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79
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80 whichFrame.document.close();
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81
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82 initScripts();
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83
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84 pageInfo();
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85
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86 setmark();
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87 }
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88
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89
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90 function Backpage(keepArea) {
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91
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92 att[1] = parseInt(att[1]) - 1;
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93
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94 if (att[1] > 0) {
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95 loadPicture(0, keepArea);
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96 } else {
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97 att[1] = parseInt(att[1]) + 1;
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98 alert("You are already on the first page!");
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99 }
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100 }
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101
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102
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103 function Nextpage(keepArea) {
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104
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105 att[1] = parseInt(att[1]) + 1;
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106
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107 if (att[1] <= parent.numPages) {
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108 loadPicture(0, keepArea);
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109 } else {
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110 att[1] = parseInt(att[1]) - 1;
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111 alert("You are already on the last page!");
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112 }
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113 }
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114
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115
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116 function Page(keepArea) {
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117
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118 do {
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119 page = prompt("Goto Page (1 - " + parent.numPages + "):", 1);
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120 } while ((page != null) && ((page < 1) || (page > parent.numPages)));
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121
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122 if (page != null && page != att[1]) {
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123 att[1] = page;
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124 loadPicture(0, keepArea);
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125 }
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126 }
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127
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128
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129 function Digicat() {
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130 var url = "http://" + location.host + "/docuserver/digitallibrary/digicat.html?" + att[0] + "+" + att[1];
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131 win = window.open(url, "digicat");
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132 win.focus();
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133 }
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134
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135
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136 function Ref(refselect) {
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137
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138 var hyperlinkRef = "http://" + location.host + "/docuserver/digitallibrary/digilib.jsp?";
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139 hyperlinkRef += att[0] + "+" + att[1] + "+" + att[2] + "+" + att[3] + "+" + att[4];
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140
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141 if ((att[5] != 0) || (att[6] != 0) || (att[7] != 1) || (att[8] != 1)) {
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142 hyperlinkRef += "+" + att[5] + "+" + att[6] + "+" + att[7] + "+" + att[8];
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143 }
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144
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145 if (refselect == 1) {
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146 prompt("Link for HTML--documents", hyperlinkRef);
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147 } else {
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148 prompt("Link for LaTeX--documents", "\\href{" + hyperlinkRef + "}{TEXT}");
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149 }
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150 }
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151
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152
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153 function Mark(refselect) {
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154
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155 if (att[4].split(";").length > 7) {
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156 alert("Only 8 marks are possible at the moment!");
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157 return;
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158 }
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159
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160 whichFrame.document.all.lay1.onmousedown = function() {
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161 e = whichFrame.event;
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162
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163 if ((att[4] != "") && (att[4] != "0/0")) {
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164 att[4] += ";";
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165 } else {
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166 att[4] = "";
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167 }
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168
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169 markX = cropFloat(att[5]+att[7]*(whichFrame.document.body.scrollLeft+e.x-parseInt(whichFrame.document.all.lay1.style.left))/whichFrame.document.all.lay1.offsetWidth);
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170 markY = cropFloat(att[6]+att[8]*(whichFrame.document.body.scrollTop+e.y-parseInt(whichFrame.document.all.lay1.style.top))/whichFrame.document.all.lay1.offsetHeight);
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171
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172 att[4] += markX + "/" + markY;
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173
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174 whichFrame.document.all.lay1.cancleBubble = true;
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175
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176 setmark();
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177 }
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178 }
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179
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180
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181 function Zoomrect() {
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182 var state = 0;
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183 var x1, y1, x2, y2;
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184
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185 function Click() {
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186 e = whichFrame.event;
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187
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188 if (state == 0) {
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189 state = 1;
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190
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191 x1 = whichFrame.document.body.scrollLeft+e.x;
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192 y1 = whichFrame.document.body.scrollTop+e.y;
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193 x2 = x1;
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194 y2 = y1;
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195
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196 whichFrame.document.all.eck1.style.left = x1;
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197 whichFrame.document.all.eck1.style.top = y1;
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198 whichFrame.document.all.eck2.style.left = x2-12;
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199 whichFrame.document.all.eck2.style.top = y1;
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200 whichFrame.document.all.eck3.style.left = x1;
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201 whichFrame.document.all.eck3.style.top = y2-12;
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202 whichFrame.document.all.eck4.style.left = x2-12;
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203 whichFrame.document.all.eck4.style.top = y2-12;
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204
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205 whichFrame.document.all.eck1.style.visibility="visible";
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206 whichFrame.document.all.eck2.style.visibility="visible";
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207 whichFrame.document.all.eck3.style.visibility="visible";
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208 whichFrame.document.all.eck4.style.visibility="visible";
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209
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210 whichFrame.document.all.lay1.onmousemove = Move;
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211 whichFrame.document.all.eck4.onmousemove = Move;
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212
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213 } else {
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214
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215 x1 -= parseInt(whichFrame.document.all.lay1.style.left);
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216 y1 -= parseInt(whichFrame.document.all.lay1.style.top);
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217
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218 x2 = whichFrame.document.body.scrollLeft+e.x-parseInt(whichFrame.document.all.lay1.style.left);
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219 y2 = whichFrame.document.body.scrollTop+e.y-parseInt(whichFrame.document.all.lay1.style.left);
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220
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221 whichFrame.document.all.eck1.visibility="hidden";
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222 whichFrame.document.all.eck2.visibility="hidden";
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223 whichFrame.document.all.eck3.visibility="hidden";
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224 whichFrame.document.all.eck4.visibility="hidden";
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225
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226 whichFrame.document.all.lay1.cancleBubble = true;
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227 whichFrame.document.all.eck4.cancleBubble = true;
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228
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229 att[5] = cropFloat(att[5]+att[7]*((x1 < x2) ? x1 : x2)/whichFrame.document.all.lay1.offsetWidth);
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230 att[6] = cropFloat(att[6]+att[8]*((y1 < y2) ? y1 : y2)/whichFrame.document.all.lay1.offsetHeight);
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231
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232 att[7] = cropFloat(att[7]*Math.abs(x1-x2)/whichFrame.document.all.lay1.offsetWidth);
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233 att[8] = cropFloat(att[8]*Math.abs(y1-y2)/whichFrame.document.all.lay1.offsetHeight);
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234
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235 if (att[7] != 0 && att[8] != 0) {
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236 loadPicture(2);
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237 }
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238 }
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239 }
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240
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241 function Move() {
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242 e = whichFrame.event;
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243
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244 x2 = whichFrame.document.body.scrollLeft+e.x;
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245 y2 = whichFrame.document.body.scrollTop+e.y;
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246
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247 whichFrame.document.all.eck1.style.left = ((x1 < x2) ? x1 : x2);
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248 whichFrame.document.all.eck1.style.top = ((y1 < y2) ? y1 : y2);
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249 whichFrame.document.all.eck2.style.left = ((x1 < x2) ? x2 : x1)-12;
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250 whichFrame.document.all.eck2.style.top = ((y1 < y2) ? y1 : y2);
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251 whichFrame.document.all.eck3.style.left = ((x1 < x2) ? x1 : x2);
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252 whichFrame.document.all.eck3.style.top = ((y1 < y2) ? y2 : y1)-12;
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253 whichFrame.document.all.eck4.style.left = ((x1 < x2) ? x2 : x1)-12;
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254 whichFrame.document.all.eck4.style.top = ((y1 < y2) ? y2 : y1)-12;
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255 }
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256
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257 whichFrame.document.all.lay1.onmousedown = Click;
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258 whichFrame.document.all.eck4.onmousedown = Click;
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259 }
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260
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261
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262 function Zoomin() {
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263
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264 whichFrame.document.all.lay1.onmousedown = function() {
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265 e = whichFrame.event;
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266
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267 att[5] = cropFloat(att[5]+att[7]*(whichFrame.document.body.scrollLeft+e.x-parseInt(whichFrame.document.all.lay1.style.left))/whichFrame.document.all.lay1.offsetWidth-0.5*att[7]*0.7);
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268 att[6] = cropFloat(att[6]+att[8]*(whichFrame.document.body.scrollTop+e.y-parseInt(whichFrame.document.all.lay1.style.top))/whichFrame.document.all.lay1.offsetHeight-0.5*att[8]*0.7);
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269
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270 att[7] = cropFloat(att[7]*0.7);
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271 att[8] = cropFloat(att[8]*0.7);
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272
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273 if (att[5] < 0) {
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274 att[5] = 0;
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275 }
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276 if (att[6] < 0) {
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277 att[6] = 0;
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278 }
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279 if (att[5]+att[7] > 1) {
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280 att[5] = 1-att[7];
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281 }
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282 if (att[6]+att[8] > 1) {
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283 att[6] = 1-att[8];
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284 }
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285
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286 whichFrame.document.all.lay1.cancleBubble = true;
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287
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288 loadPicture(2);
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289 }
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290 }
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291
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292
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293 function Zoomout() {
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294 loadPicture(1);
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295 }
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296
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297
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298 function Moveto() {
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299
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300 whichFrame.document.all.lay1.onmousedown = function() {
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301 e = whichFrame.event;
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302
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303 att[5] = cropFloat(att[5]+att[7]*(whichFrame.document.body.scrollLeft+e.x-parseInt(whichFrame.document.all.lay1.style.left))/whichFrame.document.all.lay1.offsetWidth-0.5*att[7]);
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304 att[6] = cropFloat(att[6]+att[8]*(whichFrame.document.body.scrollTop+e.y-parseInt(whichFrame.document.all.lay1.style.top))/whichFrame.document.all.lay1.offsetHeight-0.5*att[8]);
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305
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306 if (att[5] < 0) {
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307 att[5] = 0;
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308 }
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309 if (att[6] < 0) {
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310 att[6] = 0;
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311 }
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312 if (att[5]+att[7] > 1) {
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313 att[5] = 1-att[7];
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314 }
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315 if (att[6]+att[8] > 1) {
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316 att[6] = 1-att[8];
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317 }
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318
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319 whichFrame.document.all.lay1.cancleBubble = true;
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320
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321 loadPicture(2);
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322 }
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323 }
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324
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325
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326 function Scaledef(scaledef) {
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327
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328 att[2] = scaledef;
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329 loadPicture(2);
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330 }
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331
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332
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333 function setmark() {
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334 if ((att[4] != "") && (att[4] != "0/0")) {
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335 var mark = att[4].split(";");
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336
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337 var countMarks = mark.length;
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338
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339 // maximum of marks is 8
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340 // we do not report this error because this is already done in func. "Mark"
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341 if (countMarks > 8) countMarks = 8;
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342
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343 var picWidth = whichFrame.document.all.lay1.offsetWidth;
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344 var picHeight = whichFrame.document.all.lay1.offsetHeight;
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345
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346 // catch the cases where the picture had not been loaded already and
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347 // make a timeout so that the coordinates are calculated with the real dimensions
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348 if (picWidth > 30) {
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349
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350 var xoffset = parseInt(whichFrame.document.all.lay1.style.left);
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351 var yoffset = parseInt(whichFrame.document.all.lay1.style.top);
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352
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353 for (var i = 0; i < countMarks; i++) {
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354 mark[i] = mark[i].split("/");
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355
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356 if ((mark[i][0] > att[5]) && (mark[i][1] > att[6]) && (mark[i][0] < (att[5]+att[7])) && (mark[i][1] < (att[6]+att[8]))) {
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357
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358 mark[i][0] = parseInt(xoffset+picWidth*(mark[i][0]-att[5])/att[7]);
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359 mark[i][1] = parseInt(yoffset+picHeight*(mark[i][1]-att[6])/att[8]);
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360
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361 whichFrame.document.getElementById("dot" + i).style.left = mark[i][0]-5;
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362 whichFrame.document.getElementById("dot" + i).style.top = mark[i][1]-5;
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363 whichFrame.document.getElementById("dot" + i).style.visibility = "visible";
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364 }
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365 }
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366 } else {
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367 setTimeout("setmark()", 100);
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368 }
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369 }
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370 }
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371
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372
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373 // capturing keypresses for next and previous page
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374 function parseKeypress() {
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375 e = whichFrame.event;
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376
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377 if (e.keyCode == 110) {
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378 Nextpage();
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379 }
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380 if (e.keyCode == 98) {
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381 Backpage();
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382 }
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383 whichFrame.document.cancleBubble = true;
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384 }
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385
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386
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387 // auxiliary function to crop senseless precicsion
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388 function cropFloat(tmp) {
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389 return parseInt(10000*tmp)/10000;
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390 }
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391
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392
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393 // initialize browser specific things (keypress caputring)
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394 function initScripts() {
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395 whichFrame.document.onkeypress = parseKeypress;
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396 whichFrame.focus();
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397 }
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398
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399
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400 // fill in the values of the "att"-array
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401 function initPicture(picURL) {
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402 att = picURL.split("+");
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403
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404 if (att[0].lastIndexOf("/") == att[0].length-1) {
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405 att[0] = att[0].substring(0, att[0].length-1);
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406 }
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407
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408 if (att.length < 2 || att[1] == "") {
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409 att[1] = 1;
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410 }
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411 if (att.length < 3 || att[2] == "") {
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412 att[2] = "1.0";
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413 }
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414
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415 if (att.length < 4) {
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416 att[3] = "";
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417 }
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418
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419 if (att[3].indexOf("f") > -1) {
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420 att[3] = "fit";
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421 }
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422
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423 if (att.length < 5 || att[4] == "") {
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424 att[4] = "0/0";
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425 }
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426
|
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427 // converts the old mark format (0-1000) to new format(0.0 - 1.0)
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428 if (att[4] != "0/0") {
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429 var tmp = att[4].split(";");
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|
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430
|
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|
431 att[4] = "";
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|
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432
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|
433 for (i = 0; i < tmp.length; i++) {
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|
434 tmp[i] = tmp[i].split("/");
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435
|
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|
436 if (tmp[i][0] > 1 && tmp[i][1] > 1) {
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|
|
437 tmp[i][0] /= 1000;
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|
|
438 tmp[i][1] /= 1000;
|
|
|
439 }
|
|
|
440
|
|
|
441 att[4] += tmp[i][0] + "/" + tmp[i][1] + ";";
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|
|
442 }
|
|
|
443 att[4] = att[4].slice(0, -1);
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|
|
444 }
|
|
|
445
|
|
|
446 if (att.length < 7) {
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|
|
447 att[5] = 0;
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|
|
448 att[6] = 0;
|
|
|
449 att[7] = 1;
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|
|
450 att[8] = 1;
|
|
|
451 } else {
|
|
|
452 att[5] = parseFloat(att[5]);
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|
|
453 att[6] = parseFloat(att[6]);
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|
|
454 att[7] = parseFloat(att[7]);
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|
|
455 att[8] = parseFloat(att[8]);
|
|
|
456 }
|
|
|
457 }
|
|
|
458
|
|
|
459
|
|
|
460 function pageInfo() {
|
|
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461
|
|
|
462 // bug in netscape 4.xx (confunding px and pt)
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|
|
463 var fontsize = document.layers ? "11pt" : "11px";
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|
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464
|
|
|
465 if (window.pageFrame) {
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|
|
466 pageFrame.document.open();
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|
|
467 pageFrame.document.write('<html><head></head><body bgcolor="#CCCCCC" topmargin="5" marginheight="5">');
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|
|
468 pageFrame.document.write('<p style="font-family: Verdana, Arial, Helvetica, sans-serif; text-align: center; color: #CC3333; font-size: ' + fontsize + '">');
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|
|
469 pageFrame.document.write(att[1] + '<b> of </b>' + numPages + '</p></body></html>');
|
|
|
470 pageFrame.document.close();
|
|
|
471 }
|
|
|
472 }
|
