function Check(){
    if(document.myform.name1.value==""){
        alert("Please input a name.");
        return false;
    }
    if(document.myform.mail1.value==""){
        alert("Please input E-mail address.");
        return false;
    }
    if(document.myform.mail1.value.indexOf("@")<=0){
        alert("Please input e-mail address definitely.");
        return false;
    }
    if(document.myform.country1.value==""){
        alert("Please input a country.");
        return false;
    }
    if(document.myform.address1.value==""){
        alert("Please input an address.");
        return false;
    }
    if(document.myform.telephone1.value==""){
        alert("Please input a telephone.");
        return false;
    }
    if(document.myform.inquiry1.value==""){
        alert("Please input a inquiry.");
        return false;
    }
    return true;
}