实现通过html传递参数

/**函数功能：从href获得参数*sHref:   http://www.artfh.com/arg.htm?arg1=d&arg2=re*sArgName:arg1, arg2*return:    the value of arg. d, re*/function GetArgsFromHref(sHref, sArgName){      var args    = sHref.split("?");      var retval = "";         if(args[0] == sHref) /*参数为空*/      {           return retval; /*无需做任何处理*/      }       var str = args[1];      args = str.split("&");      for(var i = 0; i < args.length; i ++)      {          str = args[i];          var arg = str.split("=");          if(arg.length <= 1) continue;          if(arg[0] == sArgName) retval = arg[1];      }      return retval;}