function gradient(ID, level)
{
	var box = document.getElementById(ID);
	box.style.opacity = level;
	box.style.MozOpacity = level;
	box.style.KhtmlOpacity = level;
	box.style.filter = "alpha(opacity=" + level * 100 + ")";
	box.style.display="block";
	var windowWidth = screen.width;
	var windowHeight = screen.height;
	
	var divHeight = $("#"+ID).height();
	var divWidth = $("#"+ID).width();
	var intleft = (windowWidth-divWidth)/2;
	var inttop = (windowHeight-divHeight)/2;
	var ScrollTop="";if (window.pageYOffset) ScrollTop = window.pageYOffset;else ScrollTop = (document.body.parentElement) ?document.body.parentElement.scrollTop : 0;
    
	$("#"+ID).css({"position": "absolute","top": inttop-40+ScrollTop,"left":intleft });
	
	return;
}


function fadein(id) 
{
	var level = 0;
	while(level <= 1)
	{
		setTimeout( "gradient('" + id + "'," + level + ")", (level* 1000) + 10);
		level += 0.01;
	}
}


// Open the lightbox


function openbox(formtitle, fadin)
{
  var box = document.getElementById('box'); 
  document.getElementById('filter').style.display='block';

  var btitle = document.getElementById('boxtitle');
  btitle.innerHTML = formtitle;
 
  if(fadin)
  {
	 gradient("box", 0);
	 fadein("box");
  }
  else
  { 	
    box.style.display='block';
  }  	
}

function closebox()
{
   document.getElementById('box').style.display='none';
   document.getElementById('filter').style.display='none';
   
   
}