/***************************/
//@Author: Adrian "yEnS" Mato Gondelle
//@website: www.yensdesign.com
//@email: yensamg@gmail.com
//@license: Feel free to use it, but keep this credits please!					
/***************************/

//SETTING UP OUR POPUP
//0 means disabled; 1 means enabled;
var popupStatus = 0;

//loading popup with jQuery magic!
function loadPopup(imgUrl, imgDirection){
	//loads popup only if it is disabled
	if(popupStatus==0){
		var mainHeight = $("div#main").height();
		var mainWidth = $("div#main").width();
	
		$("#backgroundPopup").css({
			"opacity": "0.7"
		});
		$("#backgroundPopup").fadeIn("slow");
		$("#popup").fadeIn("slow");
		$("#popup").append("<img src='" + imgUrl + "' />");
		
		if (imgDirection == 'portrait') {
			$("div#popup img").css({
				"height": mainHeight+80,
				"width": (mainHeight+80) * 3 / 4,
				"margin-left": 150,
				"margin-right": 150,
				"position": "absolute",
				"top": 25
			});
			
			$("#popupClose").css({
				"right": 170
			});
		}
		
		if (imgDirection == 'landscape') {
			$("div#popup img").css({
				"height": mainHeight+80,
				"width": (mainHeight+80) * 4 / 3
			});
		}			
		
		popupStatus = 1;
	}
}

//disabling popup with jQuery magic!
function disablePopup(){
	//disables popup only if it is enabled
	if(popupStatus==1){
		$("#backgroundPopup").fadeOut("slow");
		$("#popup").fadeOut("slow", function() {
			$("#popup img").remove();
		});
		popupStatus = 0;
	}
}

//centering popup
function centerPopup(){
	//request data for centering
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popupHeight = $("#popup").height();
	var popupWidth = $("#popup").width();
	//centering
	$("#popup").css({
		"position": "absolute",
		"top": windowHeight/2-popupHeight/2,
		"left": windowWidth/2-popupWidth/2
	});
	
	//only need force for IE6
	
	$("#backgroundPopup").css({
		"height": windowHeight
	});
	
}


//CONTROLLING EVENTS IN jQuery
$(document).ready(function(){
	
	//LOADING POPUP
	//Click the button event!
	$("img").click(function(){
		var imgSrc = $(this).attr("src");
		var imgDirection;
		
		if ($(this).width() > $(this).height()) {
			var imgDirection = 'landscape';
		} else {
			var imgDirection = 'portrait';
		}
		
		//centering with css
		centerPopup();
		//load popup
		loadPopup(imgSrc, imgDirection);
	});
	
	

		
		
				
	//CLOSING POPUP
	//Click the x event!
	$("#popupClose").click(function(){
		disablePopup();
	});
	//Click out event!
	$("#backgroundPopup").click(function(){
		disablePopup();
	});
	//Press Escape event!
	$(document).keypress(function(e){
		if(e.keyCode==27 && popupStatus==1){
			disablePopup();
		}
	});

});