/* -----------------------------------------------
   Floating layer - v.1
   (c) 2006 www.haan.net
   contact: jeroen@haan.net
   You may use this script but please leave the credits on top intact.
   Please inform us of any improvements made.
   When usefull we will add your credits.
  ------------------------------------------------ */

function setVisible(obj)
{
	obj = document.getElementById(obj);
	obj.style.visibility = (obj.style.visibility == 'visible') ? 'hidden' : 'visible';
}
function placeIt(obj)
{
	obj = document.getElementById(obj);
	var mypagesize 	= getPageSize();
	var mywidth = mypagesize[2];
	var myheight = mypagesize[3];
	obj.style.left = (mywidth - obj.offsetWidth)/2;
	obj.style.top = (myheight - obj.offsetHeight)/2;
	setTimeout("placeIt('layer1')",500);
}
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) {
		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) {
		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;
}