获取url参数

 1 function getUrlParam(sUrl, sKey) { 2     var param = sUrl.split(‘#‘)[0].split(‘?‘)[1]; 3     if (sKey){//指定参数名称 4         var strs = param.split(‘&‘); 5         var arrs = new Array();//如果存在多个同名参数，则返回数组 6         for(var i = 0, len = strs.length; i < len; i++){ 7             var tmp = strs[i].split(‘=‘); 8             if(tmp[0] == sKey){ 9                 arrs.push(tmp[1]);10             }11         }12         if (arrs.length == 1){//返回该参数的值或者空字符串13             return arrs[0];14         } else if (arrs.length == 0){15             return "";16         } else {17             return arrs;18         }19     } else {//不指定参数名称，返回全部的参数对象 或者 {}20         if(param == undefined || param == ""){21             return {};22         } else {23             var strs = param.split(‘&‘);24             var arrObj = new Object();25             for(var i = 0, len = strs.length; i < len; i++){26                 var tmp = strs[i].split(‘=‘);27                 if (!(tmp[0] in arrObj)) {28                     arrObj[tmp[0]] = [];29                 }30                 arrObj[tmp[0]].push(tmp[1]);               31             }32             return arrObj;33         }34     }35 }