var activetab;
var showFunction = function(elementpanel,elementhead) {
	$$("." + tabnaam + "_head").setStyle('background', 'gray');
	if(elementpanel!='0') {
		$$("." + tabnaam + '_panel').setStyle('display', 'none');
		elementpanel.setStyle('display', 'block');
	}
	elementhead.setStyle('background', '#58c008');
	activetab = elementhead;
}

window.addEvent('domready', function() {
	if(tabnaam != '') {
		showFunction($('contentoneB'),$('oneB'));
		var elOneB = $('contentoneB');
		var elTwoB = $('contenttwoB');
		if($('contentthreeB')){var elThreeB = $('contentthreeB');}
		if($('contentfourB')){var elFourB = $('contentfourB');}

		$('oneB').addEvent('click', function(){showFunction($('contentoneB'),this);});
		$('twoB').addEvent('click', function(){showFunction($('contenttwoB'),this);});
		if($('threeB')){$('threeB').addEvent('click', function(){showFunction($('contentthreeB'),this);});}
		if($('fourB')){$('fourB').addEvent('click', function(){showFunction($('contentthreeB'),this);});}

		$$("." + tabnaam + '_head').addEvents({
			mouseenter: function(){
				this.setStyle('background', '#58c008');
			},
			mouseleave: function(){
				if(this!=activetab) {
					this.setStyle('background', 'gray');
				}
			}
		});
	} else {
		alert();
	}
});