function checkGallery() {
	var gallery = document.getElementById('gallery-1');
	if (gallery) {
		var dl = gallery.getElementsByTagName('dl');
		for(var i=0; i < dl.length; i++) {
			var dt = dl[i].getElementsByTagName('dt');
			var a = dt[0].getElementsByTagName('a');
			a[0].setAttribute('rel','lightbox[group]');
		}
	}
}
function getElementsByClassName(classname, node)  {
    if(!node) node = document.getElementsByTagName("body")[0];
    var a = [];
    var re = new RegExp('\\b' + classname + '\\b');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i<j; i++)
        if(re.test(els[i].className))a.push(els[i]);
    return a;
}
window.onload=checkGallery;