function validateForm(formObj) { // Hello, I'll be your form validating script today.
var formElements = formObj.elements;

// Now I'll set a bunch of boolean variables that will help us validate your form.
var canSubmit = true; // This will ultimately decide if the form gets submitted or not, and is dependant on the other vars to do so.
var emailValid = true; // This checks if the user's email address is valid (string@string.string).
var fieldsComplete = true; // This checks that all the required text fields are not blank.
var anyChecked = true; // This makes sure all required checkbox/radio box arrays are valid.

// These arrays are used to validate the check/radio boxes.
var rcBoxes = new Array();
rcBoxes[0] = new Array();
rcBoxes[1] = new Array();
var rcArrays = new Array();
rcArrays[0] = new Array;
rcArrays[1] = new Array;

// Getting down to business now, we'll loop through all the elements of your form
for (i=0;i<formElements.length;i++) {
// We'll start with the text fields - making sure all the required ones are not blank.
	if (formElements[i].type == 'text' ||  formElements[i].type == 'textarea') {
		if (formElements[i].name.substring((formElements[i].name.length -4),(formElements[i].name.length)) == '_req' && (formElements[i].value == '' || formElements[i].value == 'undefined')) {
		formElements[i].className = formElements[i].className +' required';
		fieldsComplete = false;
			}
// Now we'll check if the user has provided you with a valid email address...
		if (formElements[i].name == 'email') {
			if (formElements[i].value.search('.+@.+\\.[a-z]+') == -1) {
				formElements[i].className = formElements[i].className +' required';				}
			else { // Removes the highlight if email is valid.
					formElements[i].className = formElements[i].className +' required';				}
			}
		else if (formElements[i].name.substring((formElements[i].name.length -4),(formElements[i].name.length)) == '_req' && formElements[i].value != '') {
			// Removes the highlight if fields are properly filled.
				formElements[i].className = formElements[i].className +' required';
			}
		}

// Finally, we go through the checkboxes and radio boxes, making sure each array of required check/radio boxes has at least one element checked.
	else if (formElements[i].type == 'radio' || formElements[i].type == 'checkbox') {
		if (formElements[i].name.substring((formElements[i].name.length -4),(formElements[i].name.length)) == '_req') {
			// Adds all checkboxes to an array which we'll be looping through later.
			rcBoxes[0].push(formElements[i].name);
			rcBoxes[1].push(formElements[i].checked);
			}
		}
	}

// After loading all the check/radio boxes into a separate array, we go through them again.
if (rcBoxes[0].length > 0) {
	for (i=0;i<rcBoxes[0].length;i++) {
		// The first thing we'll do is separate them into little arrays where they have a common name attribute.
		targetCheck = formObj[rcBoxes[0][i]];
		i += targetCheck.length;
		// Then we'll loop through that array.
		for (j=0;j<targetCheck.length;j++) {
			if (targetCheck[j].checked) {
				// If we find a checked box within a required array, add the element's name to rcArrays[0] and add true to rcArrays[1].
				rcArrays[1].push(true);
				rcArrays[0].push(targetCheck[j].name);
				// That's all we need, so we can break out of the loop.
				break;
				}
			else if (j == (targetCheck.length -1)) {
				// If nothing is checked, we only add the name of the element to rcArrays[0].
				rcArrays[0].push(targetCheck[j].name);
				}
			}
		}
	// So, with all the info we gathered up there, we'll check the length of rcArrays[0] against rcArrays[1].
	// If all the required check/radio arrays have at least one box checked, they're valid and the lengths should match.
	if (rcArrays[0].length != rcArrays[1].length) {
		// If the lengths of rcArrays[0] and rcArrays[1] don't match, it means something that should've been checked was left unchecked.
		anyChecked = false;
		}
	}

// Remember our boolean vars? This is where we check them and give the user an appropriate response.
if (!fieldsComplete || !anyChecked) {
	// This message will display if a required textfield was left blank or a checkbox was left un-checked.
	alert('Please fill out all required fields before submitting this form!');
	canSubmit = false; // Don't let the form submit.
	}
else if (!emailValid) {
	// This message will display if the user didn't enter a valid email address.
	alert('Please enter a valid email address in the highlighted field!');
	canSubmit = false; // Don't let the form submit.
	}
if (fieldsComplete && emailValid && anyChecked) {
	// If everything has been properly filled and a valid email address has been entered, the form can submit!
	canSubmit = true;
	}
return canSubmit;
}

function checkEmail(emailField) {
	if (document.newsletterform[emailField].value.search('.+@.+\\.[a-z]+') == -1) {
		document.newsletterform[emailField].className = document.newsletterform[emailField].className +' required';
		alert('Please enter a valid email address!');
		return false;
	}
	else {
		return true;
	}
}

function safariButtons() {
	if (navigator.userAgent.indexOf('Safari') >= 0 || navigator.userAgent.indexOf('AppleWebKit') >= 0) {
		inputs = document.getElementsByTagName('input');
		for (r=0;r<inputs.length;r++) {
			if (inputs[r].className.indexOf('butt') >=0) {
				inputs[r].setAttribute('value', inputs[r].getAttribute('title'));
			}
		}
	}
}

function emph(obj) {
	obj.className = obj.className +' current';
}

function demph(obj) {
	cn = obj.className;
	obj.className = cn.replace('', ' current');
}