[рони]

alexmixaylov,

$(".code").each(function() {
    var a = $(this),
        b = "#jqvmap1_" + a.attr("code");
    a.on({
        mouseenter: function() {
            $(b).mouseenter()
        },
        mouseleave: function() {
            $(b).mouseleave()
        }
    })
});