javascript 取得url

var queryStr = window.location.href.split( "?" );
if(queryStr.length>1){
 if( queryStr[1] ) {
  var parmters = queryStr[1].split( "&" );
  var parmter = new Array();
  for( i = 0 ; i < parmters.length ; i++ ) { 
   var tmp_arr = parmters[i].split( "=" ); 
   var key = tmp_arr[0]; //attribute 
   parmter[key] = tmp_arr[1]; //value 
  } 
 } 
}