1 | function Connector() |
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2 | { |
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3 | } |
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4 | |
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5 | Connector.prototype = { |
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6 | 'go' : function() |
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7 | { |
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8 | // connection |
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9 | var __HTTP__ = null; |
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10 | var __THREADS__ = []; |
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11 | var index = 0; |
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12 | var rtlen = 0; |
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13 | var ie = false; // ie don't has stream |
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14 | function makeConnection() |
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15 | { |
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16 | if ( __HTTP__ == null ) |
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17 | __HTTP__ = xhr(); |
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18 | } |
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19 | function setPost(pThread) |
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20 | { |
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21 | __THREADS__[pThread].__METHOD__ = 'POST'; |
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22 | return true; |
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23 | } |
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24 | // this set __THREADS__[?].__TYPE__ to 4 for request or 3 for stream |
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25 | function setStream(pThread) |
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26 | { |
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27 | __THREADS__[pThread].__TYPE__ = ( !ie ) ? 3 : 4; |
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28 | return true; |
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29 | } |
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30 | function trim(pData) |
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31 | { |
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32 | return pData.replace(/^ +| +$/g, ''); |
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33 | } |
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34 | function verifyUserHandler(pThread, pHandler) |
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35 | { |
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36 | var type_of_handler = typeof pHandler; |
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37 | var i; |
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38 | switch ( type_of_handler ) |
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39 | { |
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40 | case 'function' : |
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41 | return true; |
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42 | break; |
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43 | case 'object' : |
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44 | for ( i in pHandler ) |
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45 | if ( i != 'stream' && i != 'request' ) |
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46 | return false; |
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47 | else if ( i == 'stream' ) |
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48 | setStream(pThread) |
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49 | return true; |
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50 | break; |
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51 | default : |
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52 | return false; |
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53 | } |
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54 | } |
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55 | // xhr = XMLHttpRequest |
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56 | function xhr() |
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57 | { |
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58 | try |
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59 | { |
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60 | return new XMLHttpRequest(); |
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61 | } |
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62 | catch (e) |
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63 | { |
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64 | ie = true; |
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65 | try |
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66 | { |
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67 | return new ActiveXObject('Msxml2.XMLHTTP'); |
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68 | } |
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69 | catch (e1) |
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70 | { |
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71 | try |
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72 | { |
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73 | return new ActiveXObject('Microsoft.XMLHTTP'); |
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74 | } |
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75 | catch (e2) |
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76 | { |
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77 | return null; |
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78 | } |
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79 | } |
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80 | } |
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81 | } |
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82 | |
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83 | var __HANDLER__ = function() |
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84 | { |
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85 | try |
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86 | { |
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87 | if ( ie && __HTTP__.readyState != 4 ) |
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88 | return false; |
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89 | |
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90 | var threadId = __HTTP__.getResponseHeader('ThreadId'); |
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91 | if ( !threadId ) |
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92 | return false; |
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93 | |
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94 | var type = __THREADS__[threadId].__TYPE__; |
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95 | if ( __HTTP__.readyState == 3 || __HTTP__.readyState == 4 ) |
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96 | { |
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97 | if ( !ie && __HTTP__.readyState == 3 && __THREADS__[threadId].__HANDLER__.stream ) |
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98 | { |
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99 | var data = trim(__HTTP__.responseText.substr(index)); |
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100 | rtlen = __HTTP__.responseText.length; |
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101 | if ( index < rtlen && data.length ) |
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102 | { |
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103 | __THREADS__[threadId].__HANDLER__.stream(data); |
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104 | index = rtlen; |
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105 | } |
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106 | } |
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107 | if ( __THREADS__[threadId].__HANDLER__.request && __HTTP__.readyState == 4 ) |
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108 | { |
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109 | switch ( __HTTP__.status ) |
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110 | { |
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111 | case 200: |
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112 | var data = ( __THREADS__[threadId].__MODE__ == 'XML' ) ? |
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113 | __HTTP__.responseXML : |
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114 | __HTTP__.responseText; |
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115 | |
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116 | if ( ie && __THREADS__[threadId].__HANDLER__.stream ) |
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117 | __THREADS__[threadId].__HANDLER__.stream(data); |
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118 | |
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119 | if ( __THREADS__[threadId].__HANDLER__.request ) |
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120 | __THREADS__[threadId].__HANDLER__.request(data); |
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121 | |
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122 | break; // [case : status 200] |
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123 | case 404: |
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124 | alert('Page Not Found!'); |
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125 | break; // [case : status 404] |
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126 | default: |
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127 | } |
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128 | } |
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129 | } |
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130 | if ( __HTTP__.readyState == 4 ) |
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131 | { |
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132 | delete __THREADS__[threadId]; |
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133 | } |
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134 | } |
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135 | catch(e) |
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136 | { |
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137 | //alert("__HANDLER__\n" + threadId + "\n " + e + "\n ErroR: " + e.description); |
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138 | //delete __THREADS__[threadId]; |
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139 | } |
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140 | }; |
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141 | |
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142 | var argc = arguments.length; |
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143 | if ( argc < 2 || argc > 4 ) |
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144 | return {'error':'#0 - invalid params'}; |
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145 | |
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146 | if ( __THREADS__[arguments[0]] ) |
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147 | return {'error':'#2 - request is running'}; |
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148 | |
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149 | __THREADS__[arguments[0]] = { |
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150 | '__HANDLER__' : arguments[1], |
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151 | '__METHOD__' : 'GET', // __METHOD__ = [GET | POST] |
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152 | '__MODE__' : 'TEXT', // __MODE__ = [XML | TEXT] |
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153 | '__TYPE__' : 4 // __TYPE__ = [4 for request | 3 for stream] |
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154 | }; |
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155 | |
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156 | makeConnection(); |
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157 | |
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158 | if ( !verifyUserHandler(arguments[0], arguments[1]) ) |
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159 | { |
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160 | delete __THREADS__[arguments[0]]; |
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161 | return {'error':'#1 - invalid handler'}; |
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162 | } |
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163 | |
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164 | if ( argc == 3 ) |
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165 | setPost(arguments[0]); |
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166 | |
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167 | if ( __HTTP__ != null ) |
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168 | { |
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169 | try |
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170 | { |
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171 | var __TARGET__ = path_im + 'controller.php?act=' + arguments[0]; |
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172 | var __SEND__ = null; |
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173 | __HTTP__.open(__THREADS__[arguments[0]].__METHOD__, __TARGET__, true); |
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174 | if ( __THREADS__[arguments[0]].__METHOD__ == 'POST' ) |
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175 | { |
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176 | __HTTP__.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); |
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177 | __HTTP__.setRequestHeader('Cache-Control', 'no-store, no-cache, must-revalidate'); |
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178 | __HTTP__.setRequestHeader('Cache-Control', 'post-check=0, pre-check=0'); |
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179 | __HTTP__.setRequestHeader('Pragma', 'no-cache'); |
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180 | __SEND__ = arguments[2]; |
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181 | } |
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182 | //__HTTP__.setRequestHeader('ThreadId', arguments[0]); |
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183 | //__HTTP__.setRequestHeader('Connection', 'close'); |
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184 | //__HTTP__.setRequestHeader('Keep-Alive', '0'); |
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185 | __HTTP__.onreadystatechange = __HANDLER__; |
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186 | __HTTP__.send(__SEND__); |
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187 | } |
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188 | catch(e) |
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189 | { |
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190 | alert("go\n" + e.description) |
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191 | return {'error':'#3 - ' + e.description}; |
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192 | } |
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193 | } |
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194 | } |
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195 | }; |
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