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";
	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 _docHeight = (document.height !== undefined) ? document.height : document.body.offsetHeight;
	var _docWidth = (document.width !== undefined) ? document.width : document.body.offsetWidth;
	var _winWidth = document.getElementById('box').pixelWidth;



	_docWidth = (_docWidth/2)-249;

  var box = document.getElementById('box'); 
  document.getElementById('filter').style.display='block';
  document.getElementById('filter').style.height=_docHeight+"px";
  document.getElementById('box').style.left=_docWidth+"px";

  var btitle = document.getElementById('boxtitle');

  
  
	var newHTML = "<div style='float:left; text-align:center; width:450px;padding-left:20px;'>Register your interest today</div><div style='float:right' ><a href='javascript:closebox();'><img src='images/close.png' align='absmiddle' border='0' /></a></div>";
	//document.getElementById('boxtitle').innerHTML = newHTML;
    btitle.innerHTML = newHTML;
  
  if(fadin)
  {
	 gradient("box", 0);
	 fadein("box");
  }
  else
  { 	
    box.style.display='block';
  }  	
}


// Close the lightbox

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