function img(originalid,secondid,target){
    orig();
    document.getElementById("imagen0").style.display="none";
    document.getElementById(originalid).style.display="none";
    document.getElementById(secondid).style.display="block";
    document.getElementById(target).style.display="block";
}

function displaymenu(idMenu){
    origmenu();
    document.getElementById(idMenu).style.display="block";
}

function origmenu(){
    v=getElementsByClassName('items');
    for (i=0;i<v.length;i++)
    {
        document.getElementById(v[i].id).style.display="none";
    }
}

function orig(){
    v=getElementsByClassName('ori');
    for (i=0;i<v.length;i++)
    {
        document.getElementById(v[i].id).style.display="block";
    }
    w=getElementsByClassName('second');
    for (i=0;i<w.length;i++)
    {
        document.getElementById(w[i].id).style.display="none";
    }
}

function dummyIE(id){
    stilizaorig();
    document.getElementById(id).style.background="#E9713A";
    document.getElementById(id).style.color="#FFFFFF";
}
function stiliza(id){
    stilizaorig();
    document.getElementById(id).style.background="#E9713A";
    document.getElementById(id).style.color="#FFFFFF";
}

function stilizaorig(){
    v=getElementsByClassName('origenes');
    for (i=0;i<v.length;i++)
    {
        document.getElementById(v[i].id).style.background="none";
        document.getElementById(v[i].id).style.color="#FFFFFF";
    }
}
function elementsorig(){
    orig();
    document.getElementById("imagen0").style.display="block";                
}

function getElementsByClassName(needle) {
    var my_array = document.getElementsByTagName("*");
    var retvalue = new Array();
    var i;
    var j;
        for (i=0,j=0;i<my_array.length;i++) {
            var c = " " + my_array[i].className + " ";
                if (c.indexOf(" " + needle + " ") != -1) retvalue[j++] = my_array[i];
        }
    return retvalue;
}