function hidediv(id)
{
	if(document.getElementById(id) != null)
	{
		document.getElementById(id).style.display = "none";
	}
}

function showpicture(divId)
{	
	if(document.getElementById(divId) != null)
	{
		document.getElementById(divId).style.display = "block";
	}
	return;
}