Javascript | If, Else Igen med billeder og styles..

Kode 

<script>
var Blob = {
	get : function(dom){
		return new Blob.Element(dom);
	}
};

Blob.Element = function(dom){
	this.dom = dom.innerHTML ? dom : document.getElementById(dom);
}

Blob.Element.prototype = {
	addClass : function(name){
		if(this.hasClass(name)){
			return;
		}
		this.dom.className += ' '+name;
	},
	hasClass : function(name){
		var cls = this.dom.className.split(' ');
		return cls.indexOf(name) != -1 ? true : false;
	},
	removeClass : function(name){
		if(!this.hasClass(name)){
			return;
		}
		var cls = this.dom.className.split(' ');
		delete cls[cls.indexOf(name)];
		this.dom.className = cls.join(' ');
	},
	toggleClass : function(name){
		this[this.hasClass(name) ? 'removeClass' : 'addClass'](name);
	}
}

</script>
<div id="a"></div>
<a href="#" onclick="Blob.get('a').toggleClass('active');">asdasdsad</a>