function setVisible(obj, x, y)
{
	obj = document.getElementById(obj);
	for(i=1;i<6;i++)
	{
		obj2 = document.getElementById("project"+i);
		if(!(obj==obj2)) obj2.style.visibility = 'hidden';
		obj3 = document.getElementById("layer"+i);
		if(!(obj==obj3)) obj3.style.visibility = 'hidden';
	}
	obj.style.visibility =  (obj.style.visibility =='visible')?'hidden':'visible';
	obj.style.left = x+20;
	obj.style.top  = y+20;
}
function hide(obj)
{
	obj = document.getElementById(obj);
	obj.style.visibility = 'hidden';
	
}