// $Id: tabledata.js,v 1.1 2006/11/09 02:26:51 jromine Exp jromine $
/* event handler: click on tr.data toggles highlight */
function handleTableClick(e) {
 var el;
 if (window.event && window.event.srcElement)
  el = window.event.srcElement;
 if (e && e.target)
  el = e.target;
 if (!el) return;

// need to allow <a> activation
// if (window.event) {
//   window.event.cancelBubble = true;
//   window.event.returnValue = false;
// }
// if (e && e.preventDefault)
//   e.preventDefault();

 var tr = ascendDOM(el,'tr');
 if (tr.className.match(/\b ?highlight\b/))
   tr.className = tr.className.replace(/\b ?highlight\b/,'');
 else
   tr.className += ' highlight';

}

/* init click handlers for tr.data rows */
function setupTableClick() {
 if (!document.getElementById) return;

 var t = document.getElementById('listing');
 if (!t) return;

 var l = t.getElementsByTagName('tr');
 for (var i = l.length-1; i>=0; i--) {
   if (l[i].className != 'head') /* tr.data */
     addEvent(l[i],'click',handleTableClick);
 }
}


addLoadEvent(setupTableClick);


function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}
	

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
/* addEvent(window,'unload',EventCache.flush);*/


/* window 'load' attachment */
function addLoadEvent(func) {

	var oldonload = window.onload;
	if (typeof window.onload != 'function') {

		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}


/* grab Elements from the DOM by className */
function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

/* toggle an element's display */
function old_toggle(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = '';
	}
}
function toggle() {
	for ( var i=0; i < arguments.length; i++ ) {
		$(arguments[i]).style.display = ($(arguments[i]).style.display != 'none' ? 'none' : '' );
	}
}



function ascendDOM(e, target) {
 while (e.nodeName.toLowerCase() != target &&
        e.nodeName.toLowerCase() != 'html')
  e = e.parentNode;
 return (e.nodeName.toLowerCase() == 'html') ? null : e;
}