window.onload=fnInit;
function fnInit(){
	document.getElementById('innerContentColumn').style.setExpression('top', 'setSize()');
	document.getElementById('footer').style.setExpression('top', 'setTop()');
}

function setSize(){
	var colWidth;
	innerContentColumn.style.position = 'absolute';
	innerContentColumn.style.top = 170;
	innerContentColumn.style.left = 200;
	colWidth = document.body.offsetWidth - leftColumn.clientWidth - rightColumn.clientWidth + 50;
	if (colWidth>0) {
		innerContentColumn.style.width = colWidth;
	} else {
		innerContentColumn.style.width = 350;
	}
}

function setTop(){
	footer.style.position = 'absolute';
	footer.style.top = innerContentColumn.offsetTop + innerContentColumn.offsetHeight;
}