function changePicture(id,img){
	var selected = document.getElementById('pic_'+id);
	var deSelected = document.getElementById('pic_'+selectedPic);
	var pic = document.getElementById('welcomePic');
	selectedPic = id;
	selected.className = 'welcomePicSmall-Selected';
	deSelected.className = 'welcomePicSmall';
	pic.src = img;
}
function showPic(img,id){
	pic = document.getElementById(id);
	pic.src = img;
}
function showPic2(img,name,caption){
	pic = document.getElementById('gallery_pic');
	pic.src = img;
	pic.alt = name;
	pc = document.getElementById("pcaption");
	pc.innerHTML = caption;
}