$(document).ready(function() {
    $("#locationMapAreas area").hover(function() {
        var idx = $("#locationMapAreas area").index(this) + 1;
        $(".locationMap").attr("src", $(".locationMapHovers img:eq(" + idx + ")").attr("src"));
    }, function() {
        $(".locationMap").attr("src", $(".locationMapHovers img:eq(0)").attr("src"));
    });
});