function adjustLayout()
{
var lheight = xHeight("leftcol");
var rheight= xHeight("maincol");
var maxHeight = Math.max(lheight,rheight);
xHeight("leftcol",maxHeight);
xHeight("maincol", maxHeight);
}
window.onload = function()
{
xAddEventListener(window, "resize", adjustLayout, false);
adjustLayout();
}