// JavaScript Document
function formValidator(){		var lastname = document.getElementById('lastname');        var firstname = document.getElementById('firstname');	var S1 = document.getElementById('S1');        var dob	= document.getElementById('dob');        var term1 = document.getElementById('term1')        var term2 = document.getElementById('term2')				if(isAlphabet(lastname,  "Please enter your last name")){                  if(isAlphabet(firstname,"Please enter your first name")){                    if(isNumeric(S1,"Please enter your last 4 digits of your ssn")){                      if(isNumeric(dob, "Please enter your date of birth")){                        if(isAlphanumeric(term1, "Please enter your application term")){                            if(isAlphanumeric(term2, "Please enter the new term")){							return true;                                                   }						}					}				}			}		}	 		return false;	}function isEmpty(elem, helperMsg){	if(elem.value.length == 0){		alert(helperMsg);		elem.focus(); 		return true;	}	return false;}function isNumeric(elem, helperMsg){	var numericExpression = /^[0-9]+$/;	if(elem.value.match(numericExpression)){		return true;	}else{		alert(helperMsg);		elem.focus();		return false;	}}function isAlphabet(elem, helperMsg){	var alphaExp = /^[a-zA-Z]+$/;	if(elem.value.match(alphaExp)){		return true;	}else{		alert(helperMsg);		elem.focus();		return false;	}}function isAlphanumeric(elem, helperMsg){	var alphaExp = /^[0-9a-zA-Z" "--]+$/;	if(elem.value.match(alphaExp)){		return true;	}else{		alert(helperMsg);		elem.focus();		return false;	}}function lengthRestriction(elem, min, max){	var uInput = elem.value;	if(uInput.length >= min && uInput.length <= max){		return true;	}else{		alert("Please enter between " +min+ " and " +max+ " characters");		elem.focus();		return false;	}}function madeSelection(elem, helperMsg){	if(elem.value == "Please Choose"){		alert(helperMsg);		elem.focus();		return false;	}else{		return true;	}}function emailValidator(elem, helperMsg){	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;	if(elem.value.match(emailExp)){		return true;	}else{		alert(helperMsg);		elem.focus();		return false;	}}