function GetParam(name)
 {
	var start=location.search.indexOf("?"+name+"=");

	if (start<0) start=location.search.indexOf("&"+name+"=");

	if (start<0) return '';

	start += name.length+2;

	var end=location.search.indexOf("&",start)-1;

	if (end<0) end=location.search.length;

	var result=location.search.substring(start,end);
	var result='';

	for(var i=start;i<=end;i++)
	 {
		var c=location.search.charAt(i);
		result=result+(c=='+'?' ':c);
	 }

	return unescape(result);
}