Event.observe(window,'load',function(){

	var okladki = $$('img.border_hover');

	for (var i=0; i < okladki.length; i++) {
		
		Event.observe(okladki[i],'mouseover',function(event){
			var element = Event.element(event);
		    element.setStyle({  border: '1px solid #8599BE' })
		});
		
		Event.observe(okladki[i],'mouseout',function(event){
				var element = Event.element(event);
			    element.setStyle({  border: '1px solid black' })
		});
	};
	
});