function setTall() {
	
	var x,y;
		if (self.innerHeight) // all except Explorer
		{
			x = self.innerWidth;
			y = self.innerHeight;
		}
		else if (document.documentElement && document.documentElement.clientHeight)
			// Explorer 6 Strict Mode
		{
			x = document.documentElement.clientWidth;
			y = document.documentElement.clientHeight;
		}
		else if (document.body) // other Explorers
		{
			x = document.body.clientWidth;
			y = document.body.clientHeight;
		}
	var off = document.getElementById('headerImage').offsetHeight + document.getElementById('topNavi').offsetHeight + 2;
	var divs = new Array(document.getElementById('leftContent'), document.getElementById('content'));
	var maxHeight = y - off - 26;
	

	for (var i = 0; i < divs.length; i++) {
		if (divs[i].offsetHeight > maxHeight)
      maxHeight = divs[i].offsetHeight;
	}

	for (var i = 0; i < divs.length; i++) {
		divs[i].style.height = maxHeight + 'px';

		if (divs[i].offsetHeight > maxHeight) {
			divs[i].style.height = (maxHeight - (divs[i].offsetHeight - maxHeight)) + 'px';
		}
	}
	
	document.getElementById('container').style.height =  maxHeight + off  + 'px';	
}

window.onload = setTall;
window.onresize = setTall;