function getPageScroll(){
var xScroll, 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;
		};
	if (self.pageXOffset) {
		xScroll = self.pageXOffset;
		}
	else if (document.documentElement && document.documentElement.scrollLeft){	 // Explorer 6 Strict
		xScroll = document.documentElement.scrollLeft;
		}
	else if (document.body) {// all other Explorers
		xScroll = document.body.scrollLeft;
		};
	arrayPageScroll = new Array(xScroll,yScroll) 
	return(arrayPageScroll);
	}

function getPageSize(){
var xScroll, yScroll;
var windowWidth, windowHeight;
	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;
		};
	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 showInfoBox(){
	var msg = arguments[0], delay = !isNaN(arguments[1]) ? arguments[1] : 1250;
	var pageSize = getPageSize(), pageScroll = getPageScroll(), infoBox = document.getElementById("onAfterAddInfoBox"), width = height = 0;
		if(infoBox.style.display=="block"){
			window.setTimeout("showInfoBox(\"" + msg + "\")", 100);
			}
		else{
			width = ((pageSize[2] - 320) / 2);
			height = ((pageSize[3] - 120) / 2);
			infoBox.style.left = (width + pageScroll[0]) + "px";
			infoBox.style.top = (height + pageScroll[1]) + "px";
			infoBox.innerHTML = msg;
			infoBox.style.display = "block";
			window.setTimeout("hideInfoBox()", delay);
			};
		};

	function hideInfoBox(){
	var infoBox = document.getElementById("onAfterAddInfoBox");
		infoBox.style.display = "none";
		};