//get params from window location by name
function gup( name )
{
  	name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  	var regexS = "[\\?&]"+name+"=([^&#]*)";
  	var regex = new RegExp( regexS );
  	var results = regex.exec( window.location.href );
  	if( results == null )
    	return "";
  	else
    	return results[1];
}