WindowedElements = {
	items : [],

	add : function (item) {
		this.items = this.items.concat([{
			id : item,
			width : document.getElementById(item).width,
			height : document.getElementById(item).height
		}]);
		
	},
	
	hide : function () {
		var element = null;
		for (var i = 0; i < this.items.length; i++) {
			// document.getElementById(this.items[i]).style.visibility = 'hidden'
			element = document.getElementById(this.items[i].id);
			element.width = 1;
			element.height = 1;
		}
	},
	
	show : function () {
		for (var i = 0; i < this.items.length; i++) {
			// document.getElementById(this.items[i]).style.visibility = 'visible'
			element = document.getElementById(this.items[i].id);
			element.width = this.items[i].width;
			element.height = this.items[i].height;
		}
	}
}