CommunityMark = {
	showLightbox: function () {
		jQuery('body').append('<div id="lightbox-overlay"></div><div id="lightbox-lightbox"><img id="lightbox-image" src="/display_images/communitymark/star_large.png" /><a id="lightbox-close-link">Close large diagram</a></div>');
		
		var page_size = CommunityMark.__getPageSize();
		var overlay = jQuery("#lightbox-overlay");
		overlay.css({
			position: 'absolute',
			width: page_size[0] + 'px',
			height: page_size[1] + 'px',
			top: 0,
			left: 0,
			backgroundColor: "#000",
			opacity: 0.8
		}).click(CommunityMark.hideLightbox);
		var lightbox = jQuery("#lightbox-lightbox");
		lightbox.css({
			position: 'absolute',
			width: '580px',
			height: '585px',
			top: '100px',
			left: (page_size[0]/2.0)-290 + 'px',
			backgroundColor: "#fff"
		}).click(CommunityMark.hideLightbox);
	},
	
	hideLightbox: function () {
		jQuery("#lightbox-overlay, #lightbox-lightbox").remove();
	},
	
	init: function () {
		jQuery("a#small-star").click(function (e) {
			CommunityMark.showLightbox();
			e.preventDefault();
		}).attr("href", "#");
	},
	
	/**
	* getPageSize() by quirksmode.com
	* @return Array Return an array with page width, height and window width, height
	*/
	__getPageSize: function () {
		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;
	}
}

jQuery(CommunityMark.init);