/*lightbox js*/			
function showTop(a)
{
var windowheight = window.screen.height; 
	boxWidth = 475;
	boxHeight = 500;

	screenWidth=document.all?document.body.clientWidth:window.innerWidth;
	screenHeight=document.all?document.body.clientHeight:window.innerHeight;
	
	
	//Show the background overlay and topbox...
	document.getElementById('screenoverlay').style.display = 'block';
	document.getElementById(a).style.display = 'block';
}

function closeTop(a)
{
	document.getElementById('screenoverlay').style.display = 'none';
	document.getElementById(a).style.display = 'none';

}