// tabs toggle display
var cur_content = 'thumb_view';
function toggleDisplay(id) {
    var el = document.getElementById(id);
	var old = document.getElementById(cur_content);
    if (el != old && el.style.display != 'block'){
		old.style.display = 'none';
		el.style.display = 'block';
		cur_content = id;
	}
	
    //return false;
}