function SwatSearchEntry(id)
{
	this.id = id;
	this.input = document.getElementById(this.id);
	this.input._search_entry = this;

	var labels = document.getElementsByTagName('label');
	var label = null;

	for (var i = 0; i < labels.length; i++) {
		if (labels[i].htmlFor == this.id) {
			label = labels[i];
			break;
		}
	}

	if (label != null) {
		this.label_text =
			(label.innerText) ? label.innerText : label.textContent;

		this.input_name = this.input.getAttribute('name');
		this.input_value = this.input.value;

		label.style.display = 'none';

		YAHOO.util.Event.addListener(this.input, 'focus', this.handleFocus,
			this, true);

		YAHOO.util.Event.addListener(this.input, 'blur', this.handleBlur,
			this, true);

		YAHOO.util.Event.onDOMReady(this.init, this, true);
	}
}

SwatSearchEntry.prototype.init = function()
{
	if (this.input.value == '' && !this.input._focused) {
		this.showLabelText();
	} else {
		this.hideLabelText();
	}
}

SwatSearchEntry.prototype.handleKeyDown = function(e)
{
	// prevent esc from undoing the clearing of label text in Firefox
	if (e.keyCode == 27) {
		this.input.value = '';
	}

	YAHOO.util.Event.removeListener(this.input, 'keypress', this.handleKeyDown);
}

SwatSearchEntry.prototype.handleFocus = function(e)
{
	this.hideLabelText();
	this.input.focus(); // IE hack to focus

	// hack to enable initialization when focused
	this.input._focused = true;
}

SwatSearchEntry.prototype.handleBlur = function(e)
{
	if (this.input.value == '')
		this.showLabelText();

	YAHOO.util.Event.removeListener(this.input, 'keypress', this.handleKeyDown);

	// hack to enable initialization when focused
	this.input._focused = false;
}

SwatSearchEntry.prototype.showLabelText = function()
{
	if (this.isLabelTextShown())
		return;

	YAHOO.util.Dom.addClass(this.input, 'swat-search-entry-empty');

	if (this.input.hasAttribute) {
		this.input.removeAttribute('name');
	} else {
		// IE can't set name attribute at runtime and doesn't have
		// hasAttribute method. Unbelievable but it's true.
		if (this.input.name) {
			// remove name attribute
			var outer_html = this.input.outerHTML.replace(
				'name=' + this.input_name, '');

			var old_input = this.input;
			this.input = document.createElement(outer_html);

			// replace old input with new one
			old_input.parentNode.insertBefore(this.input, old_input);

			// prevent IE memory leaks
			YAHOO.util.Event.purgeElement(old_input);
			old_input.parentNode.removeChild(old_input);

			// add event handlers back
			YAHOO.util.Event.addListener(this.input, 'focus', this.handleFocus,
				this, true);

			YAHOO.util.Event.addListener(this.input, 'blur', this.handleBlur,
				this, true);
		}
	}

	this.input_value = this.input.value;
	this.input.value = this.label_text;
}

SwatSearchEntry.prototype.isLabelTextShown = function()
{
	if (this.input.hasAttribute) {
		var shown = (!this.input.hasAttribute('name'));
	} else {
		var shown = (!this.input.getAttribute('name'));
	}

	return shown;
}

SwatSearchEntry.prototype.hideLabelText = function()
{
	if (!this.isLabelTextShown())
		return;

	var hide = false;

	if (this.input.hasAttribute) {
		if (!this.input.hasAttribute('name')) {
			this.input.setAttribute('name', this.input_name);
			hide = true;
		}
	} else {
		// IE hack - seriously, unbelievable.
		if (!this.input.getAttribute('name')) {

			// we want the same input with a name attribute
			var outer_html = this.input.outerHTML.replace(
				'id=' + this.id,
				'id=' + this.id + ' name=' + this.input_name);

			var old_input = this.input;
			this.input = document.createElement(outer_html);

			// add event handlers back
			YAHOO.util.Event.addListener(this.input, 'focus', this.handleFocus,
				this, true);

			YAHOO.util.Event.addListener(this.input, 'blur', this.handleBlur,
				this, true);

			// replace old input with new one
			old_input.parentNode.insertBefore(this.input, old_input);

			// prevent IE memory leaks
			YAHOO.util.Event.purgeElement(old_input);
			old_input.parentNode.removeChild(old_input);

			hide = true;
		}
	}

	if (hide) {
		this.input.value = this.input_value;
		YAHOO.util.Dom.removeClass(this.input, 'swat-search-entry-empty');
		YAHOO.util.Event.addListener(this.input, 'keypress',
			this.handleKeyDown, this, true);
	}
}