function testRequiredFields() {
 var txtName = document.forms.EmailData.Name.value;
 var txtCompanyName = document.forms.EmailData.CompanyName.value;
 var txtEmail = document.forms.EmailData.Email.value;
 if (!txtName) {alert("Please enter your Name"); document.forms.EmailData.Name.focus(); return false};
 if (!txtCompanyName) {alert("Please enter your Company Name"); document.forms.EmailData.CompanyName.focus(); return false};
 if (!txtEmail) {alert("Please enter your E-mail address"); document.forms.EmailData.Email.focus(); return false};
 return true;
}