$(document).ready(function(){
    $(".hsm").bind("mouseover",function(){
	$("#headpic").css("background-image","url(images/headpic_"+(Math.round($(this).attr("rel"))+1)+".jpg)");
    });
    $("#headm").bind("mouseout",function(){
	$("#headpic").css("background-image","url(images/headpic_1.jpg)");
	$("#headpic").fadeTo(100,1);
    });
});