// Background functions

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;
	}
	
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
	return arrayPageSize;
}

function loadBackground() {
	if ($("#overlay-bg").css('display') != 'block') {
		resizeBackground();
		
		$("#overlay-bg").fadeIn(400);
		
		if($.browser.msie) {
			if(parseInt($.browser.version) <8) {
			
				$('#login_border').pulse({
					opacity: [1,0]
				}, {
					times: 4
				});
				//setTimeout(function() {
        		//	$('#login_border').css('opacity', '0');
   				//}, 10); 
			
			}
			
		}
	}
}
$('#login_border').hide();

function resizeBackground() {
	var page_size        = getPageSize();
	var page_width       = page_size[0];
	var page_height      = page_size[1];
	var popup_height     = 0;
	var footer_bottom    = $('#footer').offset().top + $('#footer').height();
	
	$("#overlay-bg").css({
		"width": page_width,
		"height": page_height
	});
}