$(function(){
    
    $("map area").mouseover(function(ev) {
        activate($(this).attr('class').replace("target_",""));
    });
    $("map area").mouseout(function(ev) {
        deactivate($(this).attr('class').replace("target_",""));
    });
    
});

function activate(className) {
    
    deactivate();
    $("img."+className).addClass("active");
    
    $(".active").click(function(el) {
        deactivate();
    });
    
    $(".overlay-text").addClass("active");
    $(".overlay-text h1").text(className.replace("_"," "));
        
    var texting = $(".info_"+$(".target_"+className).attr("alt")).text();
    if(texting != "") {
        $(".overlay-text .description").text(texting);
        $(".overlay-text .description").show();
    } else {
        $(".overlay-text .description").hide();
    }
    
}

function deactivate() {
    
    $(".active").removeClass("active");
    
}