function isxpsp2()
{
	var flag=false;
	var s=new String(navigator.appMinorVersion);
	var x=new String(navigator.appVersion);
	var re=/sp2/i;
	var re2=/nt 5.1/i;
	((s.search(re)>0)&&(x.search(re2)>0))? flag=true:flag=false;
	return flag;
}

function getAddHeight(num)
{
	var statusbarheight=25;
	if (isxpsp2)
		return (num+statusbarheight);
	else
		return statusbarheight;
}

var g_fIsSP2 = false;
function isIEsp2()
{
	g_fIsSP2 = (navigator.userAgent.indexOf("SV1")!=-1);
	return 	g_fIsSP2;
}