var error = "";
var rfString = "";
var form = "";
function ValidateForm(form) {
	error = "";
	for (i=0; i<form.elements.length; i++) {
		// FIRST CHECK TO SEE IF REQUIRED FIELDS EXIST
		if (form.elements[i].name.indexOf("reqfields") != -1) {
			rfString = form.reqfields.value;
			break;
		}
	}
	if (rfString) {
		validateReqFields(form)
	}
	else {
		//validateAllFields(form)
	}
	if (error) {
		alert('This form could not be processed because of the following errors:\n\n' + error);
		return false;
	}
}

function validateReqFields(form) {
	rfString = form.reqfields.value;
	rfArray = rfString.split(",");
	rfCount = rfArray.length-1;
	rnametemp = "";
	for (x=0; x<=rfCount; x++) {
		for (i=0; i < form.elements.length; i++) {
			if (form.elements[i].name == rfArray[x]) {
				if ((form.elements[i].type == 'radio' || form.elements[i].type == 'checkbox') && rnametemp != form.elements[i].name) {
					rnametemp = form.elements[i].name;
					checkRadio(rnametemp,form);
				}
				else if (form.elements[i].name.indexOf("email") != -1) {
					checkEmail(form.elements[i].value)
					}
				else if (form.elements[i].value == "") {
					if (form.elements[i].name == rfArray[x]) {
						error = error + '* ' + form.elements[i].name + ' is empty\n'
					}
				}
			}
		}
	}
}

function validateAllFields(form) {
	rnametemp = "";
	for (i=0; i < form.elements.length; i++) {
		if (form.elements[i].type == 'radio' && rnametemp != form.elements[i].name) {
			rnametemp = form.elements[i].name;
			checkRadio(rnametemp,form);
		}
		else if (form.elements[i].name.indexOf("email") != -1) {
			checkEmail(form.elements[i].value)
			}
		else if (form.elements[i].value == "") {
			error = error + '* ' + form.elements[i].name + ' is empty\n'
		}
	}
}

function checkEmail (strng) {
//var error="";
if (strng == "") {
   error = error + "* You didn't enter an email address.\n";
}
else {
    var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) { 
       error = error + "* Please enter a valid email address.\n";
    }
    else {
//test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = error + "* The email address contains illegal characters.\n";
       }
    }
}
return error;    
}

// CHECK RADIO

function checkRadio(fname,form) {
	valcheck = "";
	alMsg = "";
	maxnum = form.elements[fname].length
	for (z=0;z<maxnum;z++) {
		if (form.elements[fname][z].checked) {
			valcheck = "1";
			break;
		}
	}
	if (!valcheck) {
		error = error + '* ' + fname + ' is not checked\n';
	}
}