var dochange = false;
function changeOpac(opacity) {
    var object = document.getElementById('op_over').style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}
function hideOverlay() {
	changeOpac(100);
	document.getElementById("overlay").style.visibility = "hidden";
}
function showOverlay() {
	dochange = true;
	document.getElementById("overlay").style.visibility = "visible";
}
function mkchng() {
	if (dochange == true) {
		changeOpac(50);
	}
}
function requestUpdate() {
	var utext = document.getElementById('updatetext');
	if (utext) {
		utext.style.fontWeight = 'bold';
	}
	var ubutton = document.getElementById('updatebutton');
	if (ubutton) {
		ubutton.style.fontWeight = 'bold';
		
	}/*
	var utable = document.getElementById('updatetable');
	if (utable) {
		utable.style.backgroundColor = '#5179b9';
	}
	*/
}