function actuRegionProd(){
Reg=document.forms.distributors.region.options[document.forms.distributors.region.selectedIndex].value;
Prod=document.forms.distributors.product.options[document.forms.distributors.product.selectedIndex].value;

// dans l'ordre : asiaAfrica_/europe_/northA_/southA_

switch (Prod) {
case "PackSim-Flexo" : switch(Reg) {
        case  "asiaAfrica_": I_ART=83; break;
        case  "europe_" :    I_ART=92; break;
        case  "northA_" :    I_ART=97; break;
        case  "southA_" :    I_ART=102; break;
        }
        break;

case "WebSim-Heatset" : switch(Reg) {
        case  "asiaAfrica_": I_ART=84; break;
        case  "europe_" :    I_ART=91; break;
        case  "northA_" :    I_ART=96; break;
        case  "southA_" :    I_ART=101; break;
        }
        break;
case "WebSim-News" : switch(Reg) {
        case  "asiaAfrica_": I_ART=85; break;
        case  "europe_" :    I_ART=90; break;
        case  "northA_" :    I_ART=95; break;
        case  "southA_" :    I_ART=100; break;
        }
        break;
case "PackSim-Gravure" : switch(Reg) {
        case  "asiaAfrica_": I_ART=86; break;
        case  "europe_" :    I_ART=89; break;
        case  "northA_" :    I_ART=94; break;
        case  "southA_" :    I_ART=99; break;
        }
        break;
case "SheetSim-SHOTS" : switch(Reg) {
        case  "asiaAfrica_": I_ART=87; break;
        case  "europe_" :    I_ART=88; break;
        case  "northA_" :    I_ART=93; break;
        case  "southA_" :    I_ART=98; break;
        }
        break;
}
self.location.href="spip.php?article"+I_ART+"?region="+Reg+"&product="+Prod;

}