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1 /* Simple AJAX Code-Kit (SACK) v1.6.1 */ 2 /* ©2005 Gregory Wild-Smith */ 3 /* www.twilightuniverse.com */ 4 /* Software licenced under a modified X11 licence, 5 see documentation or authors website for more details */ 6 7 function sack(file) { 8 this.xmlhttp = null; 9 10 this.resetData = function() { 11 this.method = "POST"; 12 this.queryStringSeparator = "?"; 13 this.argumentSeparator = "&"; 14 this.URLString = ""; 15 this.encodeURIString = true; 16 this.execute = false; 17 this.element = null; 18 this.elementObj = null; 19 this.requestFile = file; 20 this.vars = new Object(); 21 this.responseStatus = new Array(2); 22 }; 23 24 this.resetFunctions = function() { 25 this.onLoading = function() { }; 26 this.onLoaded = function() { }; 27 this.onInteractive = function() { }; 28 this.onCompletion = function() { }; 29 this.onError = function() { }; 30 this.onFail = function() { }; 31 }; 32 33 this.reset = function() { 34 this.resetFunctions(); 35 this.resetData(); 36 }; 37 38 this.createAJAX = function() { 39 try { 40 this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); 41 } catch (e1) { 42 try { 43 this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 44 } catch (e2) { 45 this.xmlhttp = null; 46 } 47 } 48 49 if (! this.xmlhttp) { 50 if (typeof XMLHttpRequest != "undefined") { 51 this.xmlhttp = new XMLHttpRequest(); 52 } else { 53 this.failed = true; 54 } 55 } 56 }; 57 58 this.setVar = function(name, value){ 59 this.vars[name] = Array(value, false); 60 }; 61 62 this.encVar = function(name, value, returnvars) { 63 if (true == returnvars) { 64 return Array(encodeURIComponent(name), encodeURIComponent(value)); 65 } else { 66 this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true); 67 } 68 } 69 70 this.processURLString = function(string, encode) { 71 encoded = encodeURIComponent(this.argumentSeparator); 72 regexp = new RegExp(this.argumentSeparator + "|" + encoded); 73 varArray = string.split(regexp); 74 for (i = 0; i < varArray.length; i++){ 75 urlVars = varArray[i].split("="); 76 if (true == encode){ 77 this.encVar(urlVars[0], urlVars[1]); 78 } else { 79 this.setVar(urlVars[0], urlVars[1]); 80 } 81 } 82 } 83 84 this.createURLString = function(urlstring) { 85 if (this.encodeURIString && this.URLString.length) { 86 this.processURLString(this.URLString, true); 87 } 88 89 if (urlstring) { 90 if (this.URLString.length) { 91 this.URLString += this.argumentSeparator + urlstring; 92 } else { 93 this.URLString = urlstring; 94 } 95 } 96 97 // prevents caching of URLString 98 this.setVar("rndval", new Date().getTime()); 99 100 urlstringtemp = new Array(); 101 for (key in this.vars) { 102 if (false == this.vars[key][1] && true == this.encodeURIString) { 103 encoded = this.encVar(key, this.vars[key][0], true); 104 delete this.vars[key]; 105 this.vars[encoded[0]] = Array(encoded[1], true); 106 key = encoded[0]; 107 } 108 109 urlstringtemp[urlstringtemp.length] = key + "=" + this.vars[key][0]; 110 } 111 if (urlstring){ 112 this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator); 113 } else { 114 this.URLString += urlstringtemp.join(this.argumentSeparator); 115 } 116 } 117 118 this.runResponse = function() { 119 eval(this.response); 120 } 121 122 this.runAJAX = function(urlstring) { 123 if (this.failed) { 124 this.onFail(); 125 } else { 126 this.createURLString(urlstring); 127 if (this.element) { 128 this.elementObj = document.getElementById(this.element); 129 } 130 if (this.xmlhttp) { 131 var self = this; 132 if (this.method == "GET") { 133 totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString; 134 this.xmlhttp.open(this.method, totalurlstring, true); 135 } else { 136 this.xmlhttp.open(this.method, this.requestFile, true); 137 try { 138 this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded") 139 } catch (e) { } 140 } 141 142 this.xmlhttp.onreadystatechange = function() { 143 switch (self.xmlhttp.readyState) { 144 case 1: 145 self.onLoading(); 146 break; 147 case 2: 148 self.onLoaded(); 149 break; 150 case 3: 151 self.onInteractive(); 152 break; 153 case 4: 154 self.response = self.xmlhttp.responseText; 155 self.responseXML = self.xmlhttp.responseXML; 156 self.responseStatus[0] = self.xmlhttp.status; 157 self.responseStatus[1] = self.xmlhttp.statusText; 158 159 if (self.execute) { 160 self.runResponse(); 161 } 162 163 if (self.elementObj) { 164 elemNodeName = self.elementObj.nodeName; 165 elemNodeName.toLowerCase(); 166 if (elemNodeName == "input" 167 || elemNodeName == "select" 168 || elemNodeName == "option" 169 || elemNodeName == "textarea") { 170 self.elementObj.value = self.response; 171 } else { 172 self.elementObj.innerHTML = self.response; 173 } 174 } 175 if (self.responseStatus[0] == "200") { 176 self.onCompletion(); 177 } else { 178 self.onError(); 179 } 180 181 self.URLString = ""; 182 break; 183 } 184 }; 185 186 this.xmlhttp.send(this.URLString); 187 } 188 } 189 }; 190 191 this.reset(); 192 this.createAJAX(); 193 }
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