function showContactBox()
{
	document.getElementById('contactBox').style.visibility="visible";
}

function hideContactBox()
{
	document.getElementById('contactBox').style.visibility="hidden";
}

function addLoadEvent(func) { 
  var oldonload = window.onload; 
  if (typeof window.onload != 'function') { 
	window.onload = func; 
  } else { 
	window.onload = function() { 
	  if (oldonload) { 
		oldonload(); 
	  } 
	  func(); 
	} 
  } 
}