window.addEvent('domready',function(){

	backgrounds = ['bg_pulsem_azul','bg_pulsem_azul_tapiz','bg_pulsem_cafe','bg_pulsem_cafe_tapiz'];
	bg = backgrounds[Math.floor(Math.random()*backgrounds.length)];
	$$('body').setStyle('background-image','url(/img/'+bg+'.png)');

	myTips = new Tips('.tipCaller',{
		className : 'tooltip',
		offsets:{'x':16,'y':0},
		onShow: function(el){
			el.set('morph',{duration:200,link:'chain'});
			el.morph({
				'margin-top':[10,0],
				'opacity':[0,1]
			});
		},
		onHide: function(el){
			el.set('morph',{duration:200,link:'chain'});
			el.morph({
				'margin-top':[0,-10],
				'opacity':[1,0]
			});
		}
	});
});