jquery 获取当前网页的get参数

 1 function GetElementsByName(tag, name) { 
 2     var elem = document.getElementsByTagName(tag); 
 3     var arr = []; 
 4     var index = 0; 
 5     var l = elem.length; 
 6     for(var i = 0; i < l; i++) { 
 7         var att = elem[i].getAttribute("name"); 
 8         if(att == name) { 
 9             arr[index++] = elem[i]; 
10         } 
11     } 
12     return arr; 
13 }