function     GetQueryString(name)     

{     

     var     reg     =   new   RegExp("(^|&)"+     name     +"=([^&]*)(&|$)");    

     //var     reg     =   new   RegExp("(.*)\?(.*&)"+     name     +"=([^&]*)(&|$)");

     var     r     =     window.location.search.substr(1).match(reg);     

     if     (r!=null)   return     unescape(r[2]);   return   null;     

}     

alert(GetQueryString("參數(shù)名1"));