/*toggle all sub element displays based on the containing object
	elt = containing element
	tagList, list of tags contained in elt to toggle 
	className, toggle only those tags that have this className
	eltStyleChange, actual element to change from plus to minus.  if arg not passed, this = elt
*/
function toggle(elt, tagList, className) {
	
	tagArr = tagList.split(",");
	for (h = 0; h < tagArr.length; h++){
		dds = elt.getElementsByTagName(tagArr[h]);
		for (i = 0; i < dds.length; i++) {
			if (dds[i].className.indexOf(className) != -1){
				dds[i].style.display = (dds[i].style.display == '' || dds[i].style.display=='block' ? 'none' : '');
			}
		}
	}
	return false;
}