var div;

function toggleVis() {
	
	var el;

	el = document.getElementById("show");
	if (el.innerHTML == "show") 
	{
		div = document.getElementById("gallery");
		div.style.visibility = "visible";
		div.style.height = "auto";
		
		el.innerHTML = "hide";
	}
	else {
		div = document.getElementById("gallery");
		div.style.visibility = "hidden";
		div.style.height = "0px";
		
		el.innerHTML = "show";
	}
}