Event.observe(window, 'load', 
	function()
	{
		var intros = $$('.product_page');
		for (var i=0; i<intros.length; i++){
			intros[i].observe('click', function(){ window.location = '/shop/'+this.id.split('_')[0] } );
			intros[i].setStyle({'cursor':'pointer'});
		}
	}
);