function popup(mypage, myname, w, h, scroll,tool,stat) {
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable,toolbar='+tool+',status='+stat+''
	win = window.open(mypage, myname, winprops)
	if (parseInt(navigator.appVersion) >= 4) 
		{ 
			win.window.focus(); 
		}
}

function trim(str)
{
    str.replace(/^\s*/, '').replace(/\s*$/, '');
	return str;
}

function getHTTPVariable(_var, _loc)
	{
		var input = _loc.search.substring(1);
		if (input)
			{
				var _search = input.split("&");
				var _tmp = new Array();
				for (i = 0; i < _search.length; i++)
					{
						_tmp = _search[i].split("=");
						if (_tmp[0] == _var)
							return _tmp[1];
						}
							if(_search.length <= 0)
							{
								_tmp = _input.split('=');
								return _tmp[1];
							}
						return "";
					}
				return "";
			}