function placeBanner()
{
	var dim = getPageSize();
	var container = document.getElementById('RichMediaBox');
	container.style.visibility='visible';
	var xPos = (dim[2]-436)/2;
	container.style.left=xPos+'px';
	var yPos = (dim[3]-215)/2;
	if(yPos > xPos)
	{
		container.style.top=xPos+'px';
	}
	else
	{
		container.style.top=yPos+'px';
	}
}

function placeBannerPos(xPos, yPos)
{
	var dim = getPageSize();
	var container = document.getElementById('RichMediaBox');
	container.style.visibility='visible';
	container.style.left=xPos+'px';
	container.style.top=yPos+'px';
}

function closeBanner()
{
	var container = document.getElementById('RichMediaBox');
	container.style.visibility='hidden';
}

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 if (document.documentElement && document.documentElement.scrollHeight > document.documentElement.offsetHeight){ // Explorer 6 strict mode
               xScroll = document.documentElement.scrollWidth;
               yScroll = document.documentElement.scrollHeight;
       } else { // Explorer Mac...would also work in 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;
       }

       return [pageWidth,pageHeight,windowWidth,windowHeight];
}