var content;
var sidebar;

function getDivs() {
	if (document.getElementById)	{
		sidebar = document.getElementById('sidebar');
		content = document.getElementById('content');
	}
	else if (document.all)	{
		sidebar = document.all['sidebar'];
		content = document.all['content'];
	}
}

function fixHeight () {
	if (sidebar) {
		content.style.height = ""
		if ( content.offsetHeight <= sidebar.offsetHeight) {
			content.style.height = sidebar.offsetHeight + "px";
		} 
	}
}