function getClientHeight()
{
	return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientHeight:document.body.clientHeight;
}

function inita()
{
	h = getClientHeight() - 517;
	if (h < 510)
	{
		h = 510;
	}
	ua = navigator.userAgent.toLowerCase();
	if ((ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1) && (ua.indexOf("webtv") == -1) && (ua.indexOf("7") == -1))
	{
		document.getElementById("main").style.height = h + "px";
	}
	else
	{
		document.getElementById("main").style.minHeight = h - 1 + "px";
	}
	
}

window.onresize = function() {
   inita();
}