function validateCareersForm() {
	var emailRegEx = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;

	if (document.getElementById("firstName").value.length == 0) {
		alert('Please enter your first name');
		document.getElementById("firstName").focus();
		return false;
	}  

	if (document.getElementById("lastName").value.length == 0) {
		alert('Please enter your last name');
		document.getElementById("lastName").focus();
		return false;
	}

	if (document.getElementById("phone").value.length > 0) {
		document.getElementById("phone").value = parsePhoneNumber(document.getElementById("phone").value);
	}
	
	if (document.getElementById("phone").value.length > 0 && document.getElementById("phone").value.length != 12) {
		document.getElementById("phone").focus();
		return false;
	}

	if (document.getElementById("email").value.length == 0) {
		alert('Please enter your email address');
		document.getElementById("email").focus();
		return false;
	}

    if (document.getElementById("email").value.search(emailRegEx) == -1) {
        alert('Please enter a valid email address');
		document.getElementById("email").focus();
        return false;
    }

	if (document.getElementById("cover").value.length > 1800) {
		var alertMsg = 'Please limit your cover letter text to 1800 characters or less.  You have entered ' + document.getElementById("cover").value.length + ' characters.';
		alert(alertMsg);
		document.getElementById("cover").focus();
		return false;
	}

	if (document.getElementById("resume").value.length > 6000) {
		var alertMsg = 'Please limit your resume text to 6000 characters or less.  You have entered ' + document.getElementById("resume").value.length + ' characters.';
		alert(alertMsg);
		document.getElementById("resume").focus();
		return false;
	}

	return true;
}

function parsePhoneNumber(phoneString)
{
    var formattedString = "";
    var index = 0;
    var i;

    i = phoneString.length;
    while (index != i)
  	{
	   	if (isNaN(parseInt(phoneString.charAt(index)))) { 
	   	}
	    else { 
	    	formattedString = formattedString + phoneString.charAt(index);
	    }
	    index = index + 1;
	}
    if (formattedString.length == 10) {
		formattedString = formattedString.substring(0,3) + "-" + formattedString.substring(3,6) + "-" + formattedString.substring(6,10);
	}
    else {
	    formattedString = phoneString;
        alert("Please enter a valid phone number");
    }
    return formattedString;
}