//apply behaviour to gallery elements
function initGallery() {

	if(!document.getElementById || !document.getElementsByTagName) return false;

	var photoHolder			= document.getElementById("galleryPhotoHolder");
	var galleryThumbnails	= document.getElementById("galleryThumbnails");
	var captionDiv			= document.getElementById("galleryPhotoCaption");
	
	if(galleryThumbnails && photoHolder && captionDiv) {
	
		var links		= galleryThumbnails.getElementsByTagName("a");

		if(links) {
			for(var i = 0; i<links.length; i++) {
			
				links[i].onclick = function() {
					photoHolder.src 		= this;
					photoHolder.alt			= this.title;
					photoHolder.title		= this.title;
					captionDiv.innerHTML	= this.title;
					return false;	
				}
			}				
		} 

	}

}