current_overID = "";
last_overID = "";

function item (img_name,width,height)
{
        img_prefix = img_name;
        this.slide_img = new Image (width,height);
        this.slide_img.src = img_prefix + ".png";
}

function novoItem (img_name,width,height) 
{
        item [img_name] = new item (img_name,width,height);
}

function mouseover (itemID)
{
        current_overID = itemID;
        if (current_overID != last_overID) {
                          document.jrcmap.src = item [current_overID].slide_img.src;
        }
}

novoItem ("Imagens/PiramideAtividade",150,134);
novoItem ("Imagens/PiramideAtividadeOvAtiv",150,134);
novoItem ("Imagens/PiramideAlimentacaoOvAtiv",150,134);
novoItem ("Imagens/PiramideRepousoOvAtiv",150,134);

novoItem ("Imagens/PiramideAlimentacao",150,134);
novoItem ("Imagens/PiramideAtividadeOvAlim",150,134);
novoItem ("Imagens/PiramideAlimentacaoOvAlim",150,134);
novoItem ("Imagens/PiramideRepousoOvAlim",150,134);

novoItem ("Imagens/PiramideRepouso",150,134);
novoItem ("Imagens/PiramideAtividadeOvRep",150,134);
novoItem ("Imagens/PiramideAlimentacaoOvRep",150,134);
novoItem ("Imagens/PiramideRepousoOvRep",150,134);

novoItem ("Imagens/Piramide",395,352);
novoItem ("Imagens/PiramideRepousoOvGr",395,352);
novoItem ("Imagens/PiramideAlimentacaoOvGr",395,352);
novoItem ("Imagens/PiramideAtividadeOvGr",395,352);