function evenColumns(div1,div2) {
	// figure out which div is taller, and set the other div to that height
	var buf = 50;
	if (document.getElementById(div2).offsetHeight > document.getElementById(div1).offsetHeight) {
		var h = document.getElementById(div2).offsetHeight;
		document.getElementById(div1).style.height = h + buf;
	} else {
		var h = document.getElementById(div1).offsetHeight;
		document.getElementById(div2).style.height = h + buf;
	}
}