window.previous_onload = window.onload;

window.onload = function set_contenthome_height() {
	t = document.getElementById("toptd");
	r = document.getElementById("tdright");
	c = document.getElementById("contenthome");
		
	if(t.offsetHeight > t.height) {
		c.height = r.offsetHeight-t.height;
	}
		
	window.previous_onload();
}