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220
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1 /*
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2
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3 Copyright (C) 2003 WTWG, Uni Bern
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4
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5 This program is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU General Public License
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7 as published by the Free Software Foundation; either version 2
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8 of the License, or (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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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 Author: Christian Luginbuehl, 07.04.2004 , Version Alcatraz 0.6
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20
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21 */
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22
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23 function identify() {
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24 return 'Digicat v0.3';
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25 }
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26
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27
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28 dcParams = new Object();
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29
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30 function newParameter(name, value, defaultValue, detail) {
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31
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32 if ( !dcParams[name] ) {
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33
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34 dcParams[name] = new Object();
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35
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36 dcParams[name].value = value;
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37 dcParams[name].defaultValue = defaultValue;
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38 dcParams[name].detail = detail;
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39
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40 return dcParams[name];
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41
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42 } else {
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43
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44 alert("Fatal: An object with name '" + name + "' already exists - cannot recreate!");
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45 return false;
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46
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47 }
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48 }
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49
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50 function getParameter(name) {
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51
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52 if ( dcParams[name] ) {
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53 return dcParams[name].value;
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54 } else {
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55 return false;
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56 }
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57 }
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58
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59
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60
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61 function listParametersAsString() {
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62
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63 var params = new Array();
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64
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65 for ( param in dcParams ) {
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66 params.push(param);
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67 }
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68
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69 return params.join(",");
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70
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71 }
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72
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73
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74 function listParameters() {
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75
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76 var params = new Array();
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77
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78 for ( param in dcParams ) {
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79 params.push(param);
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80 }
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81
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82 return params;
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83
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84 }
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85
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86
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87 function init() {
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88
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89 var fWidth = document.body ? document.body.clientWidth : innerWidth;
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90 var fHeight = document.body ? document.body.clientHeight : innerHeight;
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91
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92 if (!dcParams.mo.value) {
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93 dcParams.mo.value = dcParams.mo.defaultValue;
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94 }
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95
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96 var cells = dcParams.mo.value.split('x');
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97
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98 var picWidth = (dcParams.dw.value != 0) ? dcParams.dw.value : Math.floor((fWidth-30)/cells[0])-2*cells[0]-1;
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99 var picHeight = (dcParams.dh.value != 0) ? dcParams.dh.value : picWidth;
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100
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101 if (cells.length > 1) {
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102 picHeight = (dcParams.dh.value != 0) ? dcParams.dh.value : Math.floor(((fHeight-30)-12*cells[1])/cells[1])-2*cells[1]-1;
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103 } else {
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104 cells[1] = Math.ceil(dcParams.pt.value/cells[0]);
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105 }
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106
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107 var cellWidth = parseInt(picWidth)+8;
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108 var cellHeight = parseInt(picHeight)+18;
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109
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110 document.write('<table border="0" cellspacing="1" cellpadding="0">');
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111
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112 for (var j = 0; j < cells[1]; j++) {
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113 document.write(' <tr>');
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114 for (var i = 0; i < cells[0]; i++) {
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115 var idx = parseInt(dcParams.pn.value)+i+j*cells[0];
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116 var img = baseUrl + "/servlet/Scaler/?fn=" + dcParams.fn.value + "&pn=" + idx;
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117 img += "&dw=" + picWidth + "&dh=" + picHeight + "&mo=q0";
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118 document.write(' <td width="' + cellWidth + '" height="' + cellHeight + '">');
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119 if (idx <= dcParams.pt.value) {
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120 document.write(' <a href="javascript:load(' + idx + ')"><img src="' + img + '" border="0"></a><br>' + idx);
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121 } else {
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122 document.write(' ');
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123 }
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124 document.write(' </td>');
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125
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126 }
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127 document.write(' </tr>');
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128 }
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129
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130 document.write('</table>');
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131 }
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132
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133
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134 function load(i) {
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135 var link = baseUrl + "/digilib.jsp?fn=" + dcParams.fn.value + "&pn=" + i + "&lv=3";
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136
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137 if (typeof(top.loadFocusedFrame) == 'function') {
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138 top.loadFocusedFrame(link);
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139 } else {
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140 var win = window.open(link, 'digilib');
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141 win.focus();
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142 }
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143 }
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144
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145
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146 function Backpage() {
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147
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148 if (att[1] <= 1) {
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149 att[1] = 1;
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150 alert("You are already on the first page!");
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151 }
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152
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153 att[1] = parseInt(att[1])-parseInt(att[2]*att[3]);
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154
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155 if (att[1] < 1) {
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156 att[1] = 1;
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157 }
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158 loadThumbTable();
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159 }
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160
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161
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162
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163 function Nextpage() {
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164
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165 att[1] = parseInt(att[1])+parseInt(att[2]*att[3]);
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166 loadThumbTable();
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167 }
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168
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169
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170 // capturing keypresses for next and previous page
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171 // ascii-values of n = 110, b = 98
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172 function parseKeypress (event) {
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173 if (event.charCode == 110) {
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174 Nextpage();
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175 }
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176 if (event.charCode == 98) {
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177 Backpage();
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178 }
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179 }
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180
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181
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182 // initialize browser specific things (keypress caputring)
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183 function initScripts() {
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184 for (var f = 0; f < frames.length; f++) {
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185 frames[f].document.addEventListener('keypress', parseKeypress, true);
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186 }
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187 whichFrame.focus();
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188 }
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