js method to get URL parameters

functionUrlsearch () {varname, value; varstr = location.href;//get the entire address bar    varnum = Str.indexof ("?") Str= STR.SUBSTR (num + 1);//Get all Parameters Stringvar.substr (start [, length]    vararr = Str.split ("&");//each parameter is placed in the array     for(vari = 0; i < arr.length; i++) {num= Arr[i].indexof ("="); if(num > 0) {Name= arr[i].substring (0, num); Value= ARR[I].SUBSTR (num + 1);  This[Name] =value; }    }};

The invocation is also very simple, as follows: Suppose I need to get the code value of the URL

var New  = Request.code = = undefined? "": Request.code;

js method to get URL parameters