var imageFader = function(obj)
{
	this.initialize(obj);
}

imageFader.prototype = {

	initialize: function(obj)
	{
		var self = this;
		this.obj = obj;
		this.currentElement = 0;

		this.setObservers();
	},
	
	setObservers: function(){
	
		var self = this;
		
		$$(this.obj.showcaseBtn).each(function(elm,i){
			$(elm).observe('click',function(event){
				
				/* Hindre default event */
				event.preventDefault();
				
				/* Sette korrekte klassenavn på knappene */
				$$(self.obj.showcaseBtn)[(self.currentElement)].removeClassName('aktiv');
				$$(self.obj.showcaseBtn)[i].addClassName('aktiv');
				
				/* Vise og skjule korrekt element */
				$$(self.obj.showcaseContent)[(self.currentElement)].hide();
				$$(self.obj.showcaseContent)[i].show();
				
				self.currentElement = i;
			});
		});
	}

};

Event.observe(window,'load',function()
{
	if($$('bildegalleri'))
	{
		new imageFader(
		{
			showcaseBtn: '.thumb',
			showcaseContent: '.bigImg'
		});
	}
});