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annotate ajax.js @ 755:c7b4139eb217

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Add copyright header.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 20 Nov 2014 08:58:10 +0200
parents c71948773f03
children 7735f97b2bbf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
755
c7b4139eb217 Add copyright header.
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1 //
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2 // FAPWeb - Simple Web-based Demoparty Management System
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3 // Common JavaScript / AJAX code
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4 // (C) Copyright 2012-2014 Tecnic Software productions (TNSP)
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5 //
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6
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7
728
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8 function jsCloseMessageBox(callback, cb_data)
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9 {
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10 var nitem = document.getElementById("messageBox");
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11 if (nitem && nitem.style.display != "none")
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12 {
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13 nitem.style.display = "none";
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14
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15 if (callback && typeof(callback) === "function")
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16 callback(cb_data);
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17 }
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18 }
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19
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20
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21 function jsMessageBox(msg)
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22 {
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23 var nitem = document.getElementById("messageBox");
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24 if (nitem)
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25 {
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26 nitem.innerHTML = "<div class='messageBoxInner'>"+ msg +
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27 "<div class='messageBoxControls'>"+
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28 "<input id='msgBoxConfirmClose' type='button' value=' OK '>"+
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29 "</div></div>";
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30
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31 var elem = document.getElementById("msgBoxConfirmClose");
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32 elem.onclick = function () { jsCloseMessageBox(0, 0); }
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33
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34 nitem.style.display = "block";
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35 }
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36 }
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37
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38
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39 function jsConfirmBox(msg, cb_ok, cb_cancel, cb_data)
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40 {
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41 var nitem = document.getElementById("messageBox");
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42 if (nitem)
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43 {
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44 nitem.innerHTML = "<div class='messageBoxInner'><h1>Confirmation</h1><p>"+ msg +"</p>"+
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45 "<div class='messageBoxControls'>"+
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46 "<input id='msgBoxConfirmCancel' type='button' value=' Cancel '>"+
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47 "<input id='msgBoxConfirmOK' type='button' value=' OK '>"+
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48 "</div></div>";
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49
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50 var elem = document.getElementById("msgBoxConfirmCancel");
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51 elem.onclick = function () { jsCloseMessageBox(cb_cancel, cb_data); }
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52
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53 elem = document.getElementById("msgBoxConfirmOK");
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54 elem.onclick = function () { jsCloseMessageBox(cb_ok, cb_data); }
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55
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56 nitem.style.display = "block";
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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 statusMsg(msg)
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62 {
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63 var nitem = document.getElementById("nstatus");
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64 if (nitem) nstatus.innerHTML = msg;
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65 }
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66
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67
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68 function strtrim(str)
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69 {
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70 if (!str || str == null)
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71 return "";
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72 return str.replace(/^\s+|\s+$/g,'')
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73 }
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74
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75
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76 function strencode(str)
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77 {
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78 return encodeURIComponent(str);
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79 }
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80
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81
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82 function jsCreateXMLRequest()
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83 {
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84 var req;
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85 if (window.XMLHttpRequest)
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86 {
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87 // Modern browsers
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88 req = new XMLHttpRequest();
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89 }
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90 else
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91 {
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92 // Old IE versions
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93 req = new ActiveXObject("Microsoft.XMLHTTP");
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94 }
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95 return req;
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96 }
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97
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98
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99 //
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100 // Function for creating AJAX POST request arguments list based
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101 // on fields and giving them specified types. Also basic check
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102 // for validity can be performed (e.g. field empty or not)
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103 //
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104 var lastPostArgs = Object();
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105 function jsMakePostArgs(fields, fprefix, fsuffix, nofail)
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106 {
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107 var res = [];
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108 lastPostArgs = Object();
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109
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110 for (var id in fields)
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111 {
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112 var elname = fprefix + id + fsuffix;
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113 switch (fields[id])
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114 {
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115 case 4:
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116 elname += "Sel";
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117 break;
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118 }
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119
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120 var elem = document.getElementById(elname);
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121 if (!elem && !nofail)
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122 {
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123 jsMessageBox("No such DOM element '"+ elname +"'.");
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124 return "";
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125 }
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126
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127 if (elem)
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128 {
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129 switch (fields[id])
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130 {
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131 case 1:
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132 var vstr = strtrim(elem.value);
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133 res.push(id+"="+strencode(vstr));
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134 lastPostArgs[id] = vstr;
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135 break;
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136
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137 case 2:
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138 var vint = parseInt(strtrim(elem.value));
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139 res.push(id+"="+vint);
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140 lastPostArgs[id] = vint;
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141 break;
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142
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143 case 3:
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144 res.push(id+"="+(elem.checked ? "1" : "0"));
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145 lastPostArgs[id] = elem.checked;
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146 break;
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147
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148 case 4:
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149 var vval = (elem.selectedIndex != -1) ? elem.options[elem.selectedIndex].value : -1;
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150 res.push(id+"="+vval);
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151 lastPostArgs[id] = vval;
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152 break;
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153
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154 default:
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155 jsMessageBox("Unsupported field type in "+ elname);
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156 return "";
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157 }
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158 }
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159 }
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160 return res.join("&");
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161 }
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162
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163
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164 function jsGetValue(elname, eltype)
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165 {
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166 var elem = document.getElementById(elname);
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167 if (!elem)
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168 {
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169 jsMessageBox("No such DOM element '"+ elname +"'.");
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170 return "";
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171 }
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172
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173 switch (eltype)
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174 {
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175 case 1:
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176 var vstr = strtrim(elem.value);
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177 return strencode(vstr);
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178
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179 case 2:
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180 var vint = parseInt(strtrim(elem.value));
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181 return vint;
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182
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183 case 3:
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184 return elem.checked ? "1" : "0";
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185
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186 case 4:
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187 if (elem.selectedIndex != -1)
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188 return elem.options[elem.selectedIndex].value;
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189 else
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190 return null;
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191
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192 default:
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193 jsMessageBox("Unsupported field type in "+ elname);
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194 return "";
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195 }
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196 }
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197
730
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198
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199 function jsShowPreviewImage(file)
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200 {
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201 var nitem = document.getElementById("messageBox");
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202 if (nitem)
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203 {
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204 nitem.innerHTML = "<img src='"+file+"' alt='"+file+"' /><br />"+
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205 "<div class='messageBoxControls'>"+
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206 "<input id='messageBoxClose' type='button' value=' Close '>"+
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207 "</div>";
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208
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209 var elem = document.getElementById("messageBoxClose");
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210 elem.onclick = function () { jsCloseMessageBox(0, 0); }
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211
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212 nitem.style.display = "block";
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213 }
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214 }