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 + ".gif";
}

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 ("/PublishingImages/MapaBrasil",135,134);
novoItem ("/PublishingImages/RegHidroTocantinsAraguaia",135,134);
novoItem ("/PublishingImages/RegHidroAmazonia",135,134);
//novoItem ("/sites/portalana2009/PublishingImages/RegHidroAtlanticoNordeste",135,134);
novoItem ("/PublishingImages/RegHidroAtlanticoNordesteOri",135,134);
novoItem ("/PublishingImages/RegHidroAtlanticoNordesteOci",135,134);
novoItem ("/PublishingImages/RegHidroParnaiba",135,134);
novoItem ("/PublishingImages/RegHidroSaoFrancisco",135,134);
novoItem ("/PublishingImages/RegHidroAtlanticoLeste",135,134);
novoItem ("/PublishingImages/RegHidroAtlanticoSudoeste",135,134);
novoItem ("/PublishingImages/RegHidroParaguai",135,134);
novoItem ("/PublishingImages/RegHidroParana",135,134);
novoItem ("/PublishingImages/RegHidroAtlanticoSul",135,134);
novoItem ("/PublishingImages/RegHidroUruguai",135,134);