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

// capture the event type (used for blur events)
var formevent;

// fetch xml file
var xmlDoc;
function importXML(url, func) {
	xmlDoc = false;
	// branch for native XMLHttpRequest object
	if (window.XMLHttpRequest && !(window.ActiveXObject)) {
		try {
			xmlDoc = new XMLHttpRequest();
		} catch (e) {
			xmlDoc = false;
		}
		// branch for IE/Windows ActiveX version
	} else if (window.ActiveXObject) {
		try {
			xmlDoc = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				xmlDoc = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {
				xmlDoc = false;
			}
		}
	}
	if (xmlDoc) {
		xmlDoc.onreadystatechange = processReqChange;
		xmlDoc.open("GET", url, true);
		xmlDoc.send("");
	}
}

function processReqChange() {
	// only if req shows "loaded"
	if (xmlDoc.readyState == 4) {
		// only if "OK"
		if (xmlDoc.status == 200) {
			parseFormXml();
		} else {
			alert("There was a problem retrieving the XML data:\n"
					+ xmlDoc.statusText);
		}
	}
}

// parse form
function parseFormXml() {
	form = document.getElementById(xmlDoc.responseXML.documentElement
			.getAttribute('id'));
	xmlDoc = xmlDoc.responseXML;
	// external lib check
	if (form === null) {
		// prototype
		if (typeof Prototype !== 'undefined') {
			form = $(xmlDoc.documentElement.getAttribute('id'));
		}
	}
	//onsubmit, form is checked
	if (!addEvent(form, 'submit', checkForm, false)) { // if using an image as submit
		addEvent(form, 'click', checkForm, false); // look for click event instead
	}
	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); // change blur
	}
}

//called on form submit; cycle through make sure all elements are valid
function checkForm(event) {
	
	formevent = 'submit';
	
	var pass = true;
	for ( var i in validators) {
		// External librairies such as Prototype will often extend properties and functions on to our elements, this check makes sure we only get valid elements.        
		if (typeof validators[i].check != 'undefined') {
			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.';
		if (showAlert) {
			alert(message);
		}
		//stop form submittal
		//ie event model
		if (document.all) {
			event.returnValue = false;
		}
		//standard w3c model - moz
		else {
			event.preventDefault();
		}
	} else { // Build 633 - Return For Image Submit
		return pass;
	}
}

//get document name and calculate xml document to be imported
function getXmlUrl() {

	// Build 631
	var d = new Date();
	var randts = d.getTime();
	url = phppath + pageName + '?rand=' + randts;
	//alert(url);
	return url;

	// legacy
	var url = window.location.href;
	// if it ends with a get query, remove the query
	url = url.split('?')[0];
	// remove any anchor links
	url = url.split('#')[0];
	//Grab the filename
	if (url.match(/\w+\.[a-zA-Z0-9]+$/) !== null) {
		//Replace filename.extension with filename.xml
		url = url.match(/\w+\.[a-zA-Z0-9]+$/).toString();
	} else {
		url = 'index.php';
	}
	var dot = url.lastIndexOf('.');
	// 631 mod_rewrite protection
	if (dot == -1) {
		dot = url.length;
	}
	url = url.substring(0, dot);
	// Build 623 - added random seed
	var d = new Date();
	var randts = d.getTime();
	url = phppath + url + '.xml?rand=' + randts;
	//alert(url);
	return url;
}

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);
	}

	// enclosing elt 
	if (this.element !== null) {
		this.parentClass = this.element.parentNode.className;
	}

	this.check = function() {

		// Confirmation value. Must be same as confirming value + valid for confirming value's rules
		// Build 651 - Added element check and abort for IE
		if (this.element != null) {
			type = this.element.getAttribute('type');
		} else {
			return;
		}

		// process non-text elements, itterate through
		switch (type) {
		case 'checkbox':
			element_name = this.element.name;
			form_name = this.element.form.id;
			element_id = this.element.id;
			var x = document.getElementsByName(element_name);

			if ((this.req == false)) {
				this.makeValid();
				return;
			}

			// default false
			pass = false;
			for (i = 0; i < x.length; i++) {

				var chk = x[i].checked;
				if (this.req && chk == true) {
					pass = true;
					this.makeValid();
					return;
				} else if ((this.req == false) && (chk == false)) {
					this.makeInvalid(this.reqErrMsg());
					return;
				}
			}
			if (pass == true) {
				pass = true;
				this.makeValid();
				return;
			} else {
				this.makeInvalid(this.reqErrMsg());
				return;
			}
			break;
		case 'radio':
			element_name = this.element.name;
			form_name = this.element.form.id;
			element_id = this.element.id;
			var x = document.getElementsByName(element_name);

			if ((this.req == false)) {
				this.makeValid();
				return;
			}

			// default false
			pass = false;
			for (i = 0; i < x.length; i++) {

				var chk = x[i].checked;
				if (this.req && chk == true) {
					pass = true;
					this.makeValid();
					return;
				} else if ((this.req == false) && (chk == false)) {
					this.makeInvalid(this.reqErrMsg());
					return;
				}
			}
			if (pass == true) {
				pass = true;
				this.makeValid();
				return;
			} else {
				this.makeInvalid(this.reqErrMsg());
				return;
			}
			break;

		}
		//
		if (this.sameAs != null) {
			if (this.element.value == this.sameAs.value) {
				if (validators[this.sameAs.getAttribute('id')].valid == true) {
					this.makeValid();
				} else {
					// This is triggered if a user hasn't filled in the first element of a same-as block
					var otherName = validators[this.sameAs.getAttribute('id')].name;
					this.makeInvalid('Your ' + otherName + ' is not correct.');
					// You can change this message to something else if need be, for example:
					//this.makeInvalid('Please fill out ' + otherName + ' first.');
				}
			} 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;
			//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;
				}
			}
			//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);
		switch (letter) {
		case 'a':
		case 'e':
		case 'i':
		case 'o':
		case 'u':
			word = 'an';
			break;
		default:
			word = 'a';
			break;
		}

		// Build 584
		val = this.name.replace(/_/g, " ");

		// Build 586
		if (showDefault) {
			return 'You must supply ' + word + ' ' + val + '.';
		} else {
			return this.error;
		}

	};

	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');
			if (showMessage) {
				textNode = document.createTextNode(errMsg);
			} else {
				textNode = document.createTextNode('');
			}
			//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
			span = document.createElement('span');
			span.className = "errormsg";
			span.setAttribute("id", this.id + "errmsg");
			br = document.createElement('br');
			if (showMessage) {
				textNode = document.createTextNode(errMsg);
			} else {
				textNode = document.createTextNode('');
			}
			//span.appendChild(br);
			span.appendChild(textNode);
			this.element.parentNode.appendChild(span);
		}
		this.valid = false;
		
		// Build 663
		if(formevent == 'submit'){ // only scroll to when we submit
			ScrollToElement(document.getElementById('fb_fld-' + this.id));
		}
		formevent = null;
	};

	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;
	};
}

// Build 663
function ScrollToElement(theElement) {

	var selectedPosX = 0;
	var selectedPosY = 0;

	while (theElement != null) {
		selectedPosX += theElement.offsetLeft;
		selectedPosY += theElement.offsetTop;
		theElement = theElement.offsetParent;
	}

	window.scrollTo(selectedPosX, selectedPosY);

}

function cntMCEChars(w, eid, mx) {
	var y = w.length;
	document.getElementById('count_' + eid).innerHTML = y;
	document.getElementById('left_' + eid).innerHTML = (mx - y);
	if (y > mx) {
		document.getElementById(eid + '_err').innerHTML = "Too many characters!";
	} else {
		document.getElementById(eid + '_err').innerHTML = "";
	}
}

function cntChars(w, eid, mx) {
	var y = w.value.length;
	document.getElementById('count_' + eid).innerHTML = y;
	document.getElementById('left_' + eid).innerHTML = (mx - y);
	if (y > mx) {
		document.getElementById(eid + '_err').innerHTML = "Too many characters!";
	} else {
		document.getElementById(eid + '_err').innerHTML = "";
	}
}

function cntMCEWords(w, eid, mx) {
	var y = w;
	var r = 0;
	a = y.replace(/\s/g, ' ');
	a = a.split(' ');
	for (z = 0; z < a.length; z++) {
		if (a[z].length > 0)
			r++;
	}
	document.getElementById('count_' + eid).innerHTML = a.length;
	document.getElementById('left_' + eid).innerHTML = (mx - a.length);
	if (a.length > mx) {
		document.getElementById(eid + '_err').innerHTML = "Too many words!";
	} else {
		document.getElementById(eid + '_err').innerHTML = "";
	}
}

function cntWords(w, eid, mx) {
	var y = w.value;
	var r = 0;
	a = y.replace(/\s/g, ' ');
	a = a.split(' ');
	for (z = 0; z < a.length; z++) {
		if (a[z].length > 0)
			r++;
	}
	document.getElementById('count_' + eid).innerHTML = a.length;
	document.getElementById('left_' + eid).innerHTML = (mx - a.length);
	if (a.length > mx) {
		document.getElementById(eid + '_err').innerHTML = "Too many words!";
	} else {
		document.getElementById(eid + '_err').innerHTML = "";
	}
}

/**
 * Utility Functions for common tasks
 */

var fb = {

	FormBoss_Utility_Version :'637',

	/**
	 * Toggle a field's default value on and off, but only if the fields value
	 * has not been changed by the user.
	 * @since 637
	 * @author nicSoft
	 */
	toggle : {

		fb_flds :new Array(),
		fb_flds_original :new Array(),
		fb_tripped :new Array(),

		// Save a text fields value and id to an array
		save : function(elt) {
			id = elt.id;
			value = elt.value;
			// save unique id in hash
			hit = false;
			for (i = 0; i < fb_tripped.length; i++) {
				if (fb_tripped[i] == id) {
					hit = true;
				}
			}
			// remove on first hit
			if (!hit) {
				fb_tripped.push(id);
				// store the value
				fb_flds[id] = value;
				// remove the value
				document.getElementById(id).value = "";
			} else {
				// remove if later hit
				for (i = 0; i < fb_tripped.length; i++) {
					if (fb_tripped[i] == id && fb_flds[id] == value) {
						document.getElementById(id).value = "";
					}
				}
			} // else
		},

		revert : function(elt) {
			id = elt.id;
			value = elt.value;
			if (value == '') {
				document.getElementById(id).value = fb_flds[id];
			}
		}
	}
// end toggle

}; // end fb