function hover(obj) {
	if (menuObj != null) {
		obj.className = 'menuHover';
	}
}

function unHover(obj) {
	if (menuObj != null) {
		if (obj.id == param) {
			obj.className = 'menuHover';				
		} else {
			obj.className = '';
		}
	}
}

function popUp(URL) {

	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'scrollbars=yes,resizable=0,width=400,height=175,left = 490,top = 200');");
}

function chooseDate(objId, showYears) {
	var cal = new CalendarPopup();
	if (showYears) {
		cal.showYearNavigation();
		cal.showYearNavigationInput();
	}

	cal.select(document.getElementById(objId), 'anchor', 'yyyy-MM-dd');
}

function refresh() {
	window.setTimeout('window.location.reload()', 1000);
}
	
function showBanner() {
	showOverlay();
	document.getElementById('banner').style.display = '';
}

function hideBanner() {
	hideOverlay();
	document.getElementById('banner').style.display = 'none';	
}

function showOverlay() {
	var screenSizes = getPageSize();
	document.getElementById('overlay').style.width = screenSizes[0];
	document.getElementById('overlay').style.height = screenSizes[1];
	document.getElementById('overlay').style.display = '';	
}

function hideOverlay() {
	document.getElementById('overlay').style.display = 'none';
}

function getPageSize() {
	var xScroll, yScroll;
	if (window.innerHeight && window.scrollMaxY) {   
		xScroll = window.innerWidth + window.scrollMaxX;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	var windowWidth, windowHeight;
	if (self.innerHeight) {    // all except Explorer
		if(document.documentElement.clientWidth){
			windowWidth = document.documentElement.clientWidth;
		} else {
			windowWidth = self.innerWidth;
		}
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}   
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}
	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){   
		pageWidth = xScroll;       
	} else {
		pageWidth = windowWidth;
	}
	return new Array(pageWidth,pageHeight);
}