function validForm(passForm) {
	if (passForm.Company.value == "") {
		alert("You must enter your company name")
		passForm.Company.focus()
		return false
	}
	if (passForm.Exhibition.value == "") {
		alert("You must enter exhibition's name")
		passForm.Exhibition.focus()
		return false
	}
	if (passForm.Address.value == "") {
		alert("You must enter address")
		passForm.Address.focus()
		return false
	}		
	if (passForm.Phone.value == "") {
		alert("You must enter phone")
		passForm.Phone.focus()
		return false
	}		
	if (passForm.EMAIL.value == "") {
		alert("You must enter your e-mail")
		passForm.EMAIL.focus()
		return false
	}
	if (passForm.Contact_person.value == "") {
		alert("You must enter your name")
		passForm.Contact_person.focus()
		return false
	}		
	return true
}