function validateForm() {
	var valid = checkForm();
	var frm = document.TheForm;
	var isChecked = false;
	
	if (valid) {
		for (var i=0; i<frm.locationPreference.length; i++)
			if (frm.locationPreference[i].checked)
				isChecked = true;
		valid = isChecked;
		if (!valid) {
			alert("Please select a Location Preference.");
		} else {
			isChecked = false;
			for (var i=0; i<frm.enquiryType.length; i++)
				if (frm.enquiryType[i].checked)
					isChecked = true;
			valid = isChecked;
			if (!valid) {
				alert("Please select an Enqiry Type.");
			} else {
				
				var selObj = ["timeframe","heardAbout"]; //,"officeSize","accommodate"
				var msg = ["a timeframe","how you heard about us"]; //,"an office size","how many employees you will need to accommodate"
				for (var i=0; i<selObj.length; i++) {
					valid = checkDropDownIsSelected(frm[selObj[i]]);
					if (!valid) {
						alert("Please select " + msg[i] + ".");
						break;
					}
				}
			}
		}
	}
	return valid;
}
function checkDropDownIsSelected(selObj) {
	return selObj.selectedIndex > 0;
}
function importXML(file, func)
{
	if (window.XMLHttpRequest) {
	    var req = new XMLHttpRequest();
		req.open("GET", file, true);
		req.onreadystatechange = function() {
		    if (req.readyState == 4) {
		        xmlDoc = req.responseXML;
		        func();
		    }
		};
		req.send(null);
	}
	else if (window.ActiveXObject)
	{
		xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
		xmlDoc.onreadystatechange = function () {
			if (xmlDoc.readyState == 4)
			{
				func();
			}
		};
		xmlDoc.load(file);
	}
	else
	{
		return;
	}
}

/* From scottandrew.com via simon.incutio.com */
function addEvent(obj, evType, fn, useCapture){
  if (obj.addEventListener) {
    obj.addEventListener(evType, fn, useCapture);
    return true;
  } else if (obj.attachEvent){
    var r = obj.attachEvent("on"+evType, fn);
    return r;
  } else {
    // alert('Handler could not be attached');
    return false;
  }
}

//called when xml document is imported*/
function parseFormXml()
{
	form = document.getElementById(xmlDoc.documentElement.getAttribute('id'));
	//onsubmit, form is checked
	//addEvent(form, 'submit', checkForm, false);
	validators = new Array();
	elements = xmlDoc.getElementsByTagName('element');
	//create element validator objects and add to array
	for (var i = 0; i < elements.length; i++)
	{
		val = new ElementValidator(elements[i]);
		validators[val.id] = val;
		//onblur check validity
		addEvent(val.element, 'blur', onblurCheck, false);
	}
}

//called on form submit; cycle through make sure all elements are valid
function checkForm()
{
	var pass = true;
	for (var i in validators)
	{
		validators[i].check();
		if(validators[i].valid == false)
		{
			pass = false;
		}
	}
	if (pass == false)
	{
		message = 'You have not completed this form correctly.\n';
		message += 'Please go back and review your answers.';
		alert(message);
	}
	
	return pass;
}

function onblurCheck(event)
{
	//ie
	if(document.all)
	{
		id = event.srcElement.getAttribute('id');
	}
	//moz
	else
	{
		id = this.getAttribute('id');
	}
	validators[id].check();
}

//Element Validator object
function ElementValidator(node)
{
	this.id = node.getAttribute('id');
	this.element = document.getElementById(this.id);
	this.valid = true;
	this.min = node.getAttribute('min');
	this.max = node.getAttribute('max');
	this.req = node.getAttribute('req') == "true";
	this.regs = new Array();
	regexes = node.getElementsByTagName('regex');
	for (var i = 0; i < regexes.length; i++ )
	{
		//grab text inside regex tag(s)
		this.regs[i] = new RegExp(regexes[i].childNodes[0].nodeValue);
	}
	err = node.getElementsByTagName('error')[0];
	if (err != null)
	{
		this.error = err.childNodes[0].nodeValue;
	}
	else
	{
		this.error = null;
	}
	this.name = node.getAttribute('name');
	this.sameAs = node.getAttribute('sameas');
	//get reference to element node that value should equal
	if (this.sameAs != null)
	{
		this.sameAs = document.getElementById(this.sameAs);
	}
	//classname of enclosing <li>
	this.parentClass = this.element.parentNode ? this.element.parentNode.className : "";
	
	this.check = function()
  {
   	//confirmation value. must be same as confirming value + valid for
		//confirming value's rules
   	if (this.sameAs != null)
   	{
   		if (this.element.value == this.sameAs.value)
   		{
				if(validators[this.sameAs.getAttribute('id')].valid == true)
				{
	   			this.makeValid();
				}
				else
				{
					var otherName = validators[this.sameAs.getAttribute('id')].name;
					this.makeInvalid('Your ' + otherName + ' is not correct.');
				}
   		}
   		else
   		{
				var otherName = validators[this.sameAs.getAttribute('id')].name;
				var msg = 'This value must be identical to your ' + otherName + '.';
   			this.makeInvalid(msg);
   		}
   	}
   	else
   	{
   		var val = this.element.value;
   		// trim any white space....
   		val = val.replace(/^\s+(\w)/,"$1");
   		val = val.replace(/(\w)\s+$/,"$1"); 		
   		
   		if (this.element.id=="fldEmail") {
   		    val = val.toLowerCase();
   		}
   		this.element.value = val;
   		
   		//first check for required
   		if(this.req && val == "")
   		{
   			this.makeInvalid(this.reqErrMsg());
   			return;
   		}
			//if not required and no value, is valid
			else if((this.req == false) && (val == ""))
			{
				this.makeValid();
				return;
			}
   		//check for length
   		if((this.min != null && val.length < this.min) ||
   			(this.max != null && val.length > this.max))
   		{
   			this.makeInvalid(this.lenErrMsg());
   			return;
   		}
   		//check that it matches at least one supplied regex, if any supplied
   		if(this.regs.length > 0)
   		{
   			var pass = false;
   			for (var i = 0; i < this.regs.length; i++)
   			{
   				if (this.regs[i].test(val))
   				{
   					pass = true;
   					break;
   				}
   			}
   			if (pass == false)
   			{
   				this.makeInvalid(this.error);
   				return;
   			}
   		}
   		
   		// Format phone number
   		if (this.element.id=="Phone") {
   		    val = val.replace(/\(|\)|\s/g,"");
   		     
   		    if (/04/.test(val)) {
   		        val = val.substr(0,4) + " " + val.substr(4,3) + " " + val.substr(7,3);
   		    } else {
   		        val = val.substr(0,2) + " " + val.substr(2,4) + " " + val.substr(6,4);
   		    }		
   		    this.element.value = val;
   		}
   		//passed all tests
   		this.makeValid();
   	}
  }
	
	this.lenErrMsg = function ()
	{
		var cap = this.name.substring(0,1).toUpperCase();
		var capName = cap + this.name.substring(1, this.name.length);
		if (this.min != null && this.max != null)
		{
			ret = capName + ' must be between ' + this.min + ' and ';
			ret += this.max +  ' characters.';
			return ret;
		}
		else if (this.min != null)
		{
			return capName + ' must be more than ' + this.min + ' characters.';
		}
		else //max, no min
		{
			return capName + ' must be less than ' + this.max + ' characters.';
		}
	}
	
	this.reqErrMsg = function()
  {
  	letter = this.name.substring(0, 1).toLowerCase();
  	switch (letter)
  	{
  	case 'a':
  	case 'e':
  	case 'i':
  	case 'o':
  	case 'u':
  		word = 'an';
  		break;
  	default:
  		word = 'a';
  		break;
  	}
  	return 'You must supply ' + word + ' ' + this.name + '.';
  }
	
	this.makeInvalid = function(errMsg)
  {
  	this.element.parentNode.className = this.parentClass + " error";
  	//insert error message
  	//if already invalid will have an error message already
  	if (this.valid == false)
  	{
  		errorNode = document.getElementById(this.id + 'errmsg');
  		textNode = document.createTextNode(errMsg);
  		//childnodes[0] is the old error text
  		errorNode.replaceChild(textNode, errorNode.childNodes[0]);
  	}
  	else
  	{
  		//create and add to <li> a span with an error message
		var	span = document.createElement('span');
  		span.className = "errormsg";
  		span.setAttribute("id", this.id + "errmsg");
  		textNode = document.createTextNode(errMsg);
  		span.appendChild(textNode);
  		this.element.parentNode.appendChild(span);
  	}
  	this.valid = false;
  }
	
	this.makeValid = function()
  {
  	//remove error message if there
  	if(this.valid == false)
  	{
  		errorNode = document.getElementById(this.id + 'errmsg');
		this.element.parentNode.removeChild(errorNode);
  	}
  	this.valid = true;
  	this.element.parentNode.className = this.parentClass;
  }
}