$(document).ready(function(){
  	var lastBlock = $("#a1");
    var maxWidth = 300;
	var minWidth = 75;	
    
    $("ul.accordion-list li a").mouseover(	
		function(){			
			$(lastBlock).animate({width: minWidth+"px"}, { queue:false, duration:600 });
			$(this).animate({width: maxWidth+"px"}, { queue:false, duration:600});
			currentBlock = this;				
			lastBlock = this;	
	    }
	);
	
  });