function validatepart(form) {
	if (form.Brand1) {
		if (form.Brand1.value == '') {
				alert('You must enter a Brand, Model #, quantity and description.'); 
				form.Brand1.focus();
				return false;	
		}
		if (form.Brand1.value != '') {
			if (form.Model1.value == '') {
				alert('You must enter a model #.'); 
				form.Model1.focus();
				return false;	
			}
			if (form.Quantity1.value == '')  {
				form.Quantity1.focus();
				alert('You must enter a quantity.'); 
				return false;	
			}
			if (form.Description1.value == '') {
				form.Description1.focus();
				alert('You must enter a description.'); 
				return false;	
			}
		}
	}
	if (form.Brand2.value != '') {
		if (form.Model2.value == '') {
			form.Model2.focus();
			alert('You must enter a model #.'); 
			return false;	
		}
		if (form.Quantity2.value == '')  {
			form.Quantity2.focus();
			alert('You must enter a quantity.'); 
			return false;	
		}
		if (form.Description2.value == '') {
			form.Description2.focus();
			alert('You must enter a description.'); 
			return false;	
		}
	}
	if (form.Brand3.value != '') {
		if (form.Model3.value == '') {
			form.Model3.focus();
			alert('You must enter a model #.'); 
			return false;	
		}
		if (form.Quantity3.value == '')  {
			form.Quantity3.focus();
			alert('You must enter a quantity.'); 
			return false;	
		}
		if (form.Description3.value == '') {
			form.Description3.focus();
			alert('You must enter a description.'); 
			return false;	
		}
	}
	if (form.Brand4.value != '') {
		if (form.Model4.value == '') {
			form.Model4.focus();
			alert('You must enter a model #.'); 
			return false;	
		}
		if (form.Quantity4.value == '')  {
			form.Quantity4.focus();
			alert('You must enter a quantity.'); 
			return false;	
		}
		if (form.Description4.value == '') {
			form.Description4.focus();
			alert('You must enter a description.'); 
			return false;	
		}
	}
	if (form.Brand5.value != '') {
		if (form.Model5.value == '') {
			form.Model5.focus();
			alert('You must enter a model #.'); 
			return false;	
		}
		if (form.Quantity5.value == '')  {
			form.Quantity5.focus();
			alert('You must enter a quantity.'); 
			return false;	
		}
		if (form.Description5.value == '') {
			form.Description5.focus();
			alert('You must enter a description.'); 
			return false;	
		}
	}
return true;
}