var img1 = new Image; img1.src = "images/bg1.jpg";
var img2 = new Image; img2.src = "images/bg2.jpg";
var img3 = new Image; img3.src = "images/bg3.jpg";
var img4 = new Image; img4.src = "images/bg4.jpg";

function showSlideshowPane(pane, text, image, link)
{
	var pic = document.getElementById('slideshow');
	var info = document.getElementById('slideshowtext');
	
	if(pic==null)
		return;
		
	info.innerHTML = text;
	pic.style.backgroundImage = "url(" + image + ")";
	pic.onclick = function()
	{
		window.location = link;
	}
	
	setPaneButtonState(1, pane==1);
	setPaneButtonState(2, pane==2);
	setPaneButtonState(3, pane==3);
	setPaneButtonState(4, pane==4);
}

function setPaneButtonState(pane, state)
{
	var button = document.getElementById('slideshowbutton' + pane);
	
	if(button==null)
		return;
		
	button.className = state==true ? "slideshowbuttonsel" : "slideshowbutton";
}