function chgBg(obj,color){
if (document.all || document.getElementById)
  obj.style.backgroundColor=color;
else if (document.layers)
  obj.bgColor=color;
}

function showdiv(name) {
	if (document.all) {
		eval('document.all.' + name + '.style.visibility = "visible" ');
	} else if (document.layers) {
		eval('document.layers["' + name + '"].visibility = "visible" ');
	} else if (document.getElementById) {
		eval('document.getElementById("' + name + '").style.visibility = "visible" ');
	}
}

function hidediv(name) {
	if (document.all) {
		eval('document.all.' + name + '.style.visibility = "hidden" ');
	} else if (document.layers) {
		eval('document.layers["' + name + '"].visibility = "hidden" ');
	} else if (document.getElementById) {
		eval('document.getElementById("' + name + '").style.visibility = "hidden" ');
	}
}