function hideText(thisfield) {
	if (thisfield.value == thisfield.title) {
		thisfield.value = "";
		removeClass(thisfield, "subtle");
	}
}

function showText(thisfield) {
	if (thisfield.value == "") {
		thisfield.value = thisfield.title;		
		addClass(thisfield, "subtle");
	}
}

function bookmark() {
	if (document.all) {
		window.external.AddFavorite(location.href,document.title);
	} else if (window.sidebar) {
		window.sidebar.addPanel(document.title,location.href,'');
	}
}

function hasClass(ele,cls) {
	return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}
 
function addClass(ele,cls) {
	if (!this.hasClass(ele,cls)) ele.className += " "+cls;
}

function removeClass(ele,cls) {
	if (hasClass(ele,cls)) {
		var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
		ele.className=ele.className.replace(reg,' ');
	}
}