if(!window.$) {
	$ = function(id) { return document.getElementById(id); }
}


if(!window.Utils){
Utils = {
	isVisible: function(el) {
		return !(el.style.visibility == 'hidden');
	},
	toogle: function(el) {
		if(Utils.isVisible(el)) {
			Utils.hide(el);
		} else {
			Utils.show(el);
		}
	},
	show: function(el){
		el.style.visibility = '';
	},
	hide: function(el){
		el.style.visibility = 'hidden';
	}
}}



	function toogle(id, id2){
		var e = document.getElementById(id);
		e.style.display = (e.style.display == 'none' ? '' : 'none');
		if(id2) {
			var e2 =  document.getElementById(id2);
			e2.style.display = (e.style.display == 'none' ? '' : 'none');
		}
	}
	
	function writeStart(id){
		document.writeln('<div id="' + id + '" style="display: none">');
	}
	function writeEnd(){
		document.writeln('</div>');
	}
