function ExpandCollapse(control, imagen)
{
	try
	{
		if (control.style.display == "none")
		{
			control.style.display = "";
			imagen.src = "/images/minus.gif";
		}
		else
		{
			control.style.display = "none";
			imagen.src = "/images/plus.gif";			
		}
		
		new ElementMaxHeight();	
	}
	catch (e)
	{
	}
}
function ExpandCollapseHosting(control, imagen)
{
	try
	{
		if (control.style.display == "none")
		{
			control.style.display = "";
			imagen.src = "/images/arrow_up.png";
		}
		else
		{
			control.style.display = "none";
			imagen.src = "/images/arrow_down.png";			
		}
		
		new ElementMaxHeight();	
	}
	catch (e)
	{
	}
}