function crheight(dvname) {
	dheight = document.getElementById(dvname).offsetHeight;
	offs = 0;
	mod = dheight % 5;
	if (mod > 0) offs = 5-mod;
	document.getElementById(dvname).style.height = dheight+offs+"px";
}

function crpage() {
	var y;
	if (self.innerHeight) // all except Explorer
	{
		y = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight)
		// Explorer 6 Strict Mode
	{
		y = document.documentElement.clientHeight;
	}

	else if (document.body) // other Explorers
	{
		y = document.body.clientHeight;
	}


	allheight = (document.getElementById('mdiv0').offsetHeight + document.getElementById('mdiv1').offsetHeight + document.getElementById('mdiv2').offsetHeight + document.getElementById('mdiv3').offsetHeight + document.getElementById('mdiv4').offsetHeight);
	underfooterheight=y - allheight;
	if (underfooterheight<0) underfooterheight=0;
	document.getElementById('mdiv5').style.height = underfooterheight+"px";
}