function showEXP(id)
	{
	var mydiv = document.getElementById(id); 
	var curr_display = mydiv.style.display; 
	if (curr_display == "none")
		{
		mydiv.style.display = "block";
		mydiv.style.height = "auto";
		}
	else if (curr_display == "block")
		{
		mydiv.style.display = "none";
		mydiv.style.height = "0px";
		}
	}