js中如何获取地址栏的参数值

<script>

function GetQueryString(sProp)   
  
{   
  
    var re = new RegExp("[&,?]"+sProp + "=([^\\&]*)", "i");   
  
    var a = re.exec(document.location.search);   
  
    if (a == null)   
  
        return "";   
  
    return a[1];   
  
}  

取值方法:

//假如有地址:test.aspx?title=test

var title=GetQueryString("title"); //结果 test

</script>