function HasClass(obj,cName){ return (!obj || !obj.className)?false:(new RegExp("\\b"+cName+"\\b")).test(obj.className) }
function AddClass(obj,cName){ if (!obj) return; if (obj.className==null) obj.className=''; return obj.className+=(obj.className.length>0?' ':'')+cName; }
function KillClass(obj,cName){ if (!obj) return; return obj.className=obj.className.replace(RegExp("^"+cName+"\\b\\s*|\\s*\\b"+cName+"\\b",'g'),''); }

function over(obj, name) {
	if (obj) {
		if (!HasClass(obj, name)) {
			AddClass(obj,name);
		}
	}
}

function out(obj, name) {
	if (obj) {
		if (HasClass(obj, name)) {
			KillClass(obj,name);
		}
	}
}

function popupwin(srch, width, height) {
	var w = screen.availWidth;
	var h = screen.availHeight;


	var leftPos = (w-width)/2, topPos = (h-height)/2;
	
	if (window && window.open && leftPos && topPos && w && h) {
		win = window.open(srch, 'imagesrc', 'height='+height+',width='+width+',status=no,toolbar=no,menubar=no,location=no,scrollbars=no,resizable=yes,top=' + topPos + ',left=' + leftPos);
		if (win) {
			win.focus();
			return false;
		}
	}
	return true;
}

function addToBookmark() {
	title = document.title;
	url = location.href;
  
	if (window.sidebar) { // Mozilla Firefox Bookmark
		window.sidebar.addPanel(title, url,"");
	} else if( window.external ) { // IE Favorite
		window.external.AddFavorite( url, title); 
	}
}