var onLoadMethods=new Array(resizeColumns);
//

function resizeColumns() {
	var columns = new Array('leftnav','content','rightnav');
	var max = 0;
	for (var i=0;i<columns.length;i++) {
		columns[i]=document.getElementById(columns[i]);
		if (columns[i] && columns[i].offsetHeight && columns[i].offsetHeight>max) {
			max = columns[i].offsetHeight;
		}
	}
	for (var i=0;i<columns.length;i++) {
		if (columns[i]) {
			columns[i].height = max+'px';
			columns[i].style.height = max+'px';
		}
	}
}
function onResize() {
	if (onLoadMethods) {
		for(var i=0;i<onLoadMethods.length;i++) {
			var func = onLoadMethods[i];
			func();
		}
	}
}
function onLoad() {
	onResize();
}