// eggsling, (c)2008 by DBTech.DE
// thanks to lightbox-team for inspiration

// configuration

var waitMessage     = 'Please wait... ';
var loadingImage    = "/eggsling/loading.gif";

var overlayOpacity  = 0.8;	// controls transparency of shadow overlay
var overlayDuration = 0.1;	// shadow fade in/out duration


// -----------------------------------------------------------------------------------

//
//	Additional methods for Element added by SU, Couloir
//	- further additions by Lokesh Dhakar (huddletogether.com)
//
Object.extend(Element, {
	getWidth: function(element) {
	   	element = $(element);
	   	return element.offsetWidth;
	},
	setWidth: function(element,w) {
	   	element = $(element);
    	element.style.width = w +"px";
	},
	setHeight: function(element,h) {
   		element = $(element);
    	element.style.height = h +"px";
	},
	setLineHeight: function(element,h) {
   		element = $(element);
    	element.style.lineHeight = h +"px";
	},
	setTop: function(element,t) {
	   	element = $(element);
    	element.style.top = t +"px";
	},
	setLeft: function(element,l) {
	   	element = $(element);
    	element.style.left = l +"px";
	},
	setSrc: function(element,src) {
    	element = $(element);
    	element.src = src;
	},
	setHref: function(element,href) {
    	element = $(element);
    	element.href = href;
	},
	setInnerHTML: function(element,content) {
		element = $(element);
		element.innerHTML = content;
	}
});

// -----------------------------------------------------------------------------------

// eggs class
var Eggs = Class.create();

Eggs.prototype = {

	// initialize()
	// Constructor runs on completion of the DOM loading. Calls updateeggList and then
	// the function inserts html at the bottom of the page which is used to display the shadow
	// overlay and the egg container.
	//
	initialize: function() {

		this.updateEggsList();

	},

	updateEggsList: function() {

		if (!document.getElementsByTagName){ return; }
		var eggs = document.getElementsByTagName('input');

		// loop through all input tags, process all submit-buttons
		for (var i=0; i<eggs.length; i++) {
			var egg = eggs[i];
			var eggTypeAttribute = String(egg.getAttribute('type'));
			if (eggTypeAttribute.toLowerCase().match(/^submit$/)) {
				// set eggs onclick event
				egg.onclick = function () {myEggs.blendEgg(); myEggs.submitForm(this); return false;}
				//egg.onclick = function () {myEggs.blendEgg(); return false;}
			}
		}

//		// loop through all input tags, process 'switcheggs' references in the rel attribute
//		for (var i=0; i<eggs.length; i++) {
//			var egg = eggs[i];
//			var eggRelAttribute = String(egg.getAttribute('rel'));
//			if (eggRelAttribute.toLowerCase().match(/^switcheggs$/)) {
//				// set eggs onclick event
//				egg.onclick = function () {myEggs.blendEgg(); this.form.submit(); return false;}
//			}
//		}

	},

	blendEgg: function() {
		var objBody = document.getElementsByTagName('body').item(0);

		var objOverlay = document.createElement('div');
		objOverlay.setAttribute('id', 'overlay');
		objOverlay.style.display = 'none';
		objOverlay.onclick = function() { myEggs.end(); }
		objBody.appendChild(objOverlay);

		var objEggbox = document.createElement('div');
		objEggbox.setAttribute('id','eggbox');
		objEggbox.style.display = 'none';
		objEggbox.onclick = function() { myEggs.end(); }
		objEggbox.innerHTML = waitMessage;
 		objOverlay.appendChild(objEggbox);

		hideSelectBoxes();
		hideFlash();

		var arrayPageSize = getPageSize();
			var pageWidth = arrayPageSize[0];
			var pageHeight = arrayPageSize[1];
			var windowWidth = arrayPageSize[2];
			var windowHeight = arrayPageSize[3];

		Element.setWidth('overlay', pageWidth);
		Element.setHeight('overlay', pageHeight);


//		var arrayPageScroll = getPageScroll();
//			var xScroll = arrayPageScroll[0];
//			var yScroll = arrayPageScroll[1];
//
//		eggboxWidth = Element.getWidth('eggbox');
//		eggboxHeight = Element.getHeight('eggbox');
//
//
//		Element.setTop('eggbox', yScroll + ((windowHeight - eggboxWidth) / 2));
//		Element.setLeft('eggbox', xScroll);

		new Effect.Appear('overlay', { duration: overlayDuration, from: 0.0, to: overlayOpacity });
		Element.show('eggbox');

	},
	
	end: function() {
		Element.hide('eggbox');
		new Effect.Fade('overlay', { duration: overlayDuration});
		showSelectBoxes();
		showFlash();
	},

	submitForm: function(egg) {

		//alert('submit pressed');

		var objSubmit = document.createElement('input');
		objSubmit.setAttribute('type', 'hidden');
		objSubmit.setAttribute('name', String(egg.getAttribute('name')));
		objSubmit.setAttribute('value', String(egg.getAttribute('value')));
		egg.form.appendChild(objSubmit);

		egg.form.submit();
	}

}

// -----------------------------------------------------------------------------------

function showSelectBoxes(){
	var selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
}

// ---------------------------------------------------

function hideSelectBoxes(){
	var selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "hidden";
	}
}

// ---------------------------------------------------

function showFlash(){
	var flashObjects = document.getElementsByTagName("object");
	for (i = 0; i < flashObjects.length; i++) {
		flashObjects[i].style.visibility = "visible";
	}

	var flashEmbeds = document.getElementsByTagName("embed");
	for (i = 0; i < flashEmbeds.length; i++) {
		flashEmbeds[i].style.visibility = "visible";
	}
}

// ---------------------------------------------------

function hideFlash(){
	var flashObjects = document.getElementsByTagName("object");
	for (i = 0; i < flashObjects.length; i++) {
		flashObjects[i].style.visibility = "hidden";
	}

	var flashEmbeds = document.getElementsByTagName("embed");
	for (i = 0; i < flashEmbeds.length; i++) {
		flashEmbeds[i].style.visibility = "hidden";
	}

}

// ---------------------------------------------------

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Help from Ran Bar-On [ran2103@gmail.com]
//

function pause(ms){
	var date = new Date();
	curDate = null;
	do{var curDate = new Date();}
	while( curDate - date < ms);
}

// ---------------------------------------------------

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.com
//
function getPageScroll(){

	var xScroll, yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
		xScroll = document.body.scrollLeft;
	}

	arrayPageScroll = new Array(xScroll,yScroll)
	return arrayPageScroll;
}

// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.com
// Edit for Firefox by pHaez
//
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;

//	console.log(self.innerWidth);
//	console.log(document.documentElement.clientWidth);

	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;
	}

//	console.log("xScroll " + xScroll)
//	console.log("windowWidth " + windowWidth)

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = xScroll;
	} else {
		pageWidth = windowWidth;
	}
//	console.log("pageWidth " + pageWidth)

//	alert("pageWidth=" + pageWidth + ", pageHeight=" + pageHeight + ", windowWidth=" + windowWidth + ", windowHeight=" + windowHeight)

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

// -----------------------------------------------------------------------------------

function initEggs() { myEggs = new Eggs(); }
Event.observe(window, 'load', initEggs, false);