function checkLength(len,field,eve,next)
{ 
	if (field.value.length == len) { 
		if (next > 0)
			document.parcel.elements[next].focus()
		return true
	}
	
	if (field.value.length >= len) {
			alert ("Error in entry:\n Please verify that a digit is entered and the total number of digits does not exceed "+len)		
			return false
	}
	else	
		return true
}