// JavaScript Document- to overlay a div on whole body

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";
	},
	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;
	}
});

function overlay(){
	if (arBlocked.inArray(datecursor, false))
	{
		//alert("Blocked!");
	var objBody = document.getElementsByTagName("body").item(0);
	
	var objoverlay = document.createElement("div");
	objoverlay.setAttribute('id', 'overlay');
	objoverlay.style.display = 'none';
	objBody.appendChild(objoverlay);
	var arraypagesize = getPageSize();
	Element.setHeight('overlay', arraypagesize[1]);
	new Effect.Appear('overlay', {duration: 0.2, from: 0.0, to: 0.8});	
	//$("addE").style.display='block';
	new Effect.Appear('addITS', {duration: 0.2, from: 0.0, to: 1 });
	//window.setTimeout('$(\'addEvent\').style.display=\'none\'', 300);
	arrowMove = 0;
	}
	else
	{
	var objBody = document.getElementsByTagName("body").item(0);
	
	var objoverlay = document.createElement("div");
	objoverlay.setAttribute('id', 'overlay');
	objoverlay.style.display = 'none';
	objBody.appendChild(objoverlay);
	var arraypagesize = getPageSize();
	Element.setHeight('overlay', arraypagesize[1]);
	new Effect.Appear('overlay', {duration: 0.2, from: 0.0, to: 0.3});	
	//$("addE").style.display='block';
	new Effect.Appear('addITS', {duration: 0.2, from: 0.0, to: 1});
	arrowMove = 0;
	}
}
function overlayNew(){
	
	var objBody = document.getElementsByTagName("body").item(0);
	
	var objoverlay = document.createElement("div");
	objoverlay.setAttribute('id', 'overlay');
	objoverlay.style.display = 'none';
	objBody.appendChild(objoverlay);
	var arraypagesize = getPageSize();
	Element.setHeight('overlay', arraypagesize[1]);
	new Effect.Appear('overlay', {duration: 0.2, from: 0.0, to:0.8});	
	//$("addE").style.display='block';
	new Effect.Appear('addITS', {duration: 0.2, from: 0.0, to: 1});
	arrowMove = 0;

}

function noOverlay()
{
	if (arrowMove = 1)
	{
	new Effect.Fade('overlay', {duration: 0.1, from: 0.8, to: 0.0});
	//$("addE").style.display='none';
	new Effect.Fade('addITS', {duration: 0.1, from: 1, to: 0.0});
	//new Effect.SwitchOff('addE', {duration: 0.1, from: 1, to: 0.0});
	arrowMove = 1;
	$('addITS').innerHTML = 'Loading...<img src="images/indicator_flower.gif">';
	}
}
// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		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
		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 = windowWidth;
	} else {
		pageWidth = xScroll;
	}


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