function emailTo(){
    
    var obj = document.email_form;

    var email;
    //alert(obj.region.value);
    switch (obj.region.value){

        case "region1":

            email = "pvsales@ulbrich.com"

            break;

        case "region2":

            email = "pvsaleseu@ulbrich.com"

            break;

        case "region3":

            email = "pvsaleseur@ulbrich.com"

            break;

        case "region4":

            email = "pvsaleseub@ulbrich.com"

            break;

        case "region5":

            email = "pvsaleschina@ulbrich.com"

            break;

        case "region6":

            email = "pvsalesindia@ulbrich.com"

            break;

        case "none":

            email = "pvsales@ulbrich.com"

            break;

        default:

            email = "pvsales@ulbrich.com";

    }

    obj._mailto.value = email;

    //return Validate("email_form");

}

function onLoad(){

    var obj = document.email_form;
    obj.region.onchange =emailTo;

}