function validateAddress() {
		var formObj = document.forms.addressForm;
		var e=/^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-Z0-9]{2,4}$/;
		
		if(formObj.billingFirstName.value == '') {
			alert('Enter first name');
			formObj.billingFirstName.focus();
			return false;
		}		
		if(formObj.billingLastName.value == '') {
			alert('Enter last name');
			formObj.billingLastName.focus();
			return false;
		}		
		if(formObj.billingLastName.value == '') {
			alert('Enter last name');
			formObj.billingLastName.focus();
			return false;
		}		
		if(formObj.billingEmail.value == '') {
			alert('Enter email');
			formObj.billingEmail.focus();
			return false;
		} else if(!e.exec(formObj.billingEmail.value)) {
			alert('Enter valid email');
			formObj.billingEmail.focus();
			return false;
		}		
		if(formObj.confirmEmail.value == '') {
			alert('Enter confirm email');
			formObj.confirmEmail.focus();
			return false;
		} 
		if(formObj.billingEmail.value != formObj.confirmEmail.value) {
			alert('Email and confirm email must be same.');
			formObj.billingEmail.focus();
			return false;
		} 
		if(formObj.billingAddress1.value == '') {
			alert('Enter address');
			formObj.billingAddress1.focus();
			return false;
		}		
		if(formObj.billingPostalCode.value == '') {
			alert('Enter postal code');
			formObj.billingPostalCode.focus();
			return false;
		}
		if(formObj.billingCity.value == '') {
			alert('Enter city');
			formObj.billingCity.focus();
			return false;
		}
		if(formObj.billingCountry.value == '') {
			alert('Enter country');
			formObj.billingCountry.focus();
			return false;
		}		
		if(formObj.billingPhone.value == '') {
			alert('Enter phone');
			formObj.billingPhone.focus();
			return false;
		}		
	}