if (window.attachEvent)
{
	window.attachEvent("onload", PositionContent);
	window.attachEvent("onresize", PositionContent);
}
else
{
	window.addEventListener("load", PositionContent, false);
	window.addEventListener("resize", PositionContent, false);
}

function PositionContent()
{
	var intPageWidth = document.all?self.document.documentElement.clientWidth:self.innerWidth;
	var intPageHeight = document.all?self.document.documentElement.clientHeight:self.innerHeight;
	var intCenterHeight = 570;
	var divMidContainer = document.getElementById("content");
	var intMidContainerMargin = intPageHeight - intCenterHeight;
	if(intPageHeight < 590)
	{
		divMidContainer.style.marginTop = '20px';
	}
	else
	{
		var intMarginHeight = Math.floor(intMidContainerMargin/2);
		divMidContainer.style.marginBottom = intMarginHeight + 'px';
		divMidContainer.style.marginTop = intMarginHeight + 'px';
	}

}