function getPageScroll(){

	var yScroll;

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

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

function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		//xScroll = document.body.scrollWidth;
		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
		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;
}

function OpenPopup(	popupId, top, left){	
	
//	if(obj.id == "ParentMenuDiv")
	{		
		var backPopupId = popupId +'BackLayer'; 
		if(document.getElementById(backPopupId) == undefined || document.getElementById(popupId +'BackLayer') == null){
			var backLayer = document.createElement('div');
			backLayer.id = popupId +'BackLayer';
			backLayer.name = popupId +'BackLayer';
		//	backLayer.style.display ='none';
			document.body.appendChild(backLayer);		
		}
		document.getElementById(backPopupId).style.display="block";
		document.getElementById(backPopupId).className='backLayer';
	
		if(navigator.appName == "Microsoft Internet Explorer")
		{
			document.getElementById(backPopupId).style.width = document.body.scrollWidth;
			document.getElementById(backPopupId).style.height = document.body.scrollHeight;
		}
		else if (navigator.userAgent.indexOf("Safari") > -1)
		{
			
			document.getElementById(backPopupId).style.width = (document.body.offsetWidth + window.pageXOffset + 'px');
			document.getElementById(backPopupId).style.height =(document.body.offsetHeight + document.body.offsetTop + 'px');
		}
		else
		{
			
			document.getElementById(backPopupId).style.width = (window.innerWidth +  window.scrollMaxX + 'px');
			document.getElementById(backPopupId).style.height = (window.innerHeight + window.scrollMaxY + 'px');
		
		}
	
		
		//new Effect.Opacity(backPopupId, { from:0.4, to:0.6, duration:2}); 	
			new Effect.Opacity(backPopupId, {from:0.4,to:0.6 , duration:.1, queue: {position:'back', scope: backPopupId},
			 afterFinish: function(){
                  new Effect.Opacity(backPopupId, { from:0.5,to: 0.5, duration: 1.0, queue:{position:'back', scope: backPopupId} });
    	        }
      		}
		);


		
		
		
		document.getElementById(popupId).style.left = left;
		document.getElementById(popupId).style.top = top;
		document.getElementById(popupId).style.display="block";		
	
	}	
}


function ClosePopup(popupId){
	//if(obj.id == "SubMenuMain")
	{		
	 	var backPopupId =  popupId +'BackLayer'; 
		if(document.getElementById(backPopupId)!=null){
			document.getElementById(backPopupId).style.display="none";
				document.getElementById(backPopupId).style.opacity=0;
				document.getElementById(backPopupId).style.filter = "alpha(opacity=0)";
		}
		document.getElementById(popupId).style.display="none";	
	//document.getElementById(popupId).style.zIndex = 0;
	}
	
}