function displayImg(img, medium, large, desc, colour)
{
	//fix image name so spaces are converted nicely
	var imgpath = img.replace(" ", " ");
	if (medium == true) {
	    imgpath = imgpath.replace("_thumb.","_medium.");
	}
	imgpath = "/gallery/" + imgpath;

	var newbackground = "url(" + imgpath + ") no-repeat center center " + colour;

	$('lg').setStyle('background',newbackground);

	//add image title
	document.getElementById('lgtxt').innerHTML = desc;

	//add link to orginal image
	if (large == true) {
	   imgpath = imgpath.replace("_medium.",".");
	   //document.getElementById('lgtb').innerHTML = "<a href='" + imgpath + "' class='lrg_href' rel='lightbox[gallery]'>View larger version</a>";
	} else {
	   //document.getElementById('lgtb').innerHTML = "No large version available";
	}
}

function changePage(list, page)
{
	hidePages();
	var pageid = "page_" + page;
	var selectedPage = document.getElementById(pageid);
	selectedPage.style.display = "block";
}

function hidePages()
{
    var counter = 1;
	while (counter < 100){
		try {
		    var pageid = "page_" + counter;
			var selectedPage = document.getElementById(pageid);
	        selectedPage.style.display = "none";
		} catch (e) {
			//do nothing
		}
		
	    counter++;	
	}
}