/*
Script: Element.Shortcuts.js
	Extends the Element native object to include some shortcut methods.

License:
	http://clientside.cnet.com/wiki/cnet-libraries#license
*/

Element.implement({
	isVisible: function() {
		return this.getStyle('display') != 'none';
	},
	toggle: function() {
		return this[this.isVisible() ? 'hide' : 'show']();
	},
	hide: function() {
		var d;
		try {
			//IE fails here if the element is not in the dom
			d = this.getStyle('display');
		} catch(e){}
		this.store('originalDisplay', d||'block');
		this.setStyle('display','none');
		return this;
	},
	show: function(display) {
		original = this.retrieve('originalDisplay')?this.retrieve('originalDisplay'):this.get('originalDisplay');
		this.setStyle('display',(display || original || 'block'));
		return this;
	},
  swapClass: function(remove, add) {
    return this.removeClass(remove).addClass(add);
  }
});