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";
	},
	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;
	}
});

Event.observe(window, 'load', initialize, false);

var transparentMessage = Class.create();

transparentMessage.prototype = {

	initialize: function(ctrl) {
		Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
     try {
     if ($('transparent_flash_message') && $('transparent_flash_message').hasChildNodes() ){
        if ($('transparent_flash_message').firstChild.getAttribute('src').indexOf('/images/transparent_message_spinner.gif')> -1) {
          Element.hide('transparent_flash_message')
        }
  	  };
    } catch (E) {}
  },

	// Turn everything on - mainly the IE fixes
	activate: function(){

		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		var widthFlash = 300.0
		var heightFlash = 50.0
		var widthBody = Element.getWidth('global') 
		
		var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 2);
		var lightboxLeft = arrayPageScroll[0] + (widthBody / 2) - (widthFlash / 2);
		Element.setTop('transparent_flash_message', lightboxTop);
		Element.setLeft('transparent_flash_message', lightboxLeft);
	
		img = new Image();
		img.src = '/images/transparent_message_spinner.gif';
		while ($('transparent_flash_message').hasChildNodes()){
		  $('transparent_flash_message').removeChild($('transparent_flash_message').firstChild);
		};
		$('transparent_flash_message').setAttribute("class","opening")
		$('transparent_flash_message').appendChild(img);
		$('transparent_flash_message').style.display = 'block';
		valid = new Effect.Opacity("transparent_flash_message",{from:0.7, to:0.7, queue:'end'});
	}
}
// -----------------------------------------------------------------------------------

//
// 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)

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

/*-----------------------------------------------------------------------------------------------*/


function initialize(){
  //addLightboxMarkup();
  lbox = document.getElementsByClassName('init-transparent-message');
  for(i = 0; i < lbox.length; i++) {
    valid = new transparentMessage(lbox[i]);
  }
}


function addLightboxMarkup() {
	bod = document.getElementsByTagName('body')[0];
	transparent_message	= document.createElement('div');
	transparent_message.id = 'transparent_flash_message';
	transparent_message.style.display = 'none';
	bod.insertBefore(transparent_message, bod.firstChild);

}