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/* Copyright (c) 2006-2007 Mathias Bank (http://www.mathias-bank.de)
* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
* and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
*
* Version 2.1
*
* Thanks to
* Hinnerk Ruemenapf - http://hinnerk.ruemenapf.de/ for bug reporting and fixing.
* Tom Leonard for some improvements
*
*/
jQuery.fn.extend({
/**
* Returns get parameters.
*
* If the desired param does not exist, null will be returned
*
* To get the document params:
* @example value = $(document).getUrlParam("paramName");
*
* To get the params of a html-attribut (uses src attribute)
* @example value = $('#imgLink').getUrlParam("paramName");
*/
getUrlParam: function(strParamName){
strParamName = escape(unescape(strParamName));
var returnVal = new Array();
var qString = null;
if ($(this).attr("nodeName")=="#document") {
//document-handler
if (window.location.search.search(strParamName) > -1 ){
qString = window.location.search.substr(1,window.location.search.length).split("&");
}
} else if ($(this).attr("src")!="undefined") {
var strHref = $(this).attr("src")
if ( strHref.indexOf("?") > -1 ){
var strQueryString = strHref.substr(strHref.indexOf("?")+1);
qString = strQueryString.split("&");
}
} else if ($(this).attr("href")!="undefined") {
var strHref = $(this).attr("href")
if ( strHref.indexOf("?") > -1 ){
var strQueryString = strHref.substr(strHref.indexOf("?")+1);
qString = strQueryString.split("&");
}
} else {
return null;
}
if (qString==null) return null;
for (var i=0;i<qString.length; i++){
if (escape(unescape(qString[i].split("=")[0])) == strParamName){
returnVal.push(qString[i].split("=")[1]);
}
}
if (returnVal.length==0) return null;
else if (returnVal.length==1) return returnVal[0];
else return returnVal;
}
});
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