function adjust_css( ) {
	var Height = 0;

		Footer = document.getElementById('footerpart');
		Footer.style.display = 'none';
		Footer.style.visibility = "hidden";               

		Topp   = document.getElementById("toppart");
		Left   = document.getElementById("leftcolumn");
		Middel = document.getElementById("centercolumn");
		Right  = document.getElementById("rightcolumn");

		Height = Right.offsetHeight + Topp.offsetHeight;

		Left.style.height   = Height + 'px';
		Middel.style.height = Height + 'px';

		Footer = document.getElementById('footerpart');
		Footer.style.display = 'block';
		Footer.style.visibility = "visible";               

		return true
}