//Highlight form element- © Dynamic Drive (www.dynamicdrive.com)
//For full source code, 100's more DHTML scripts, and TOS,
//visit http://www.dynamicdrive.com


function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
 
 
function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}
 
 
function changeImages() {
	changeImagesArray(changeImages.arguments);
}
 
 
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_nav_over_02 = newImage('images/nav_over_02.jpg');
		pre_nav_over_031 = newImage('images/nav_over_031.jpg');
		pre_nav_over_041 = newImage('images/nav_over_041.jpg');
		pre_nav_over_05 = newImage('images/nav_over_05.jpg');
		pre_nav_over_06 = newImage('images/nav_over_06.jpg');
		pre_nav_over_07 = newImage('images/nav_over_07.jpg');
		pre_home_nav_over_1311 = newImage('images/home_nav_over_1311.jpg');
		pre_side_nav_over_16 = newImage('images/side_nav_over_16.jpg');
		pre_side_nav_over_17 = newImage('images/side_nav_over_17.jpg');
		pre_side_nav_over_21 = newImage('images/side_nav_over_21.jpg');
		pre_side_nav_over_22 = newImage('images/side_nav_over_22.jpg');
		pre_side_nav_over_24 = newImage('images/side_nav_over_24.jpg');
		preloadFlag = true;
	}
}
 

var highlightcolor="lightyellow"

var ns6=document.getElementById&&!document.all
var previous=''
var eventobj

//Regular expression to highlight only form elements
var intended=/INPUT|TEXTAREA|SELECT|OPTION/

//Function to check whether element clicked is form element
function checkel(which){
if (which.style&&intended.test(which.tagName)){
if (ns6&&eventobj.nodeType==3)
eventobj=eventobj.parentNode.parentNode
return true
}
else
return false
}

//Function to highlight form element
function highlight(e){
eventobj=ns6? e.target : event.srcElement
if (previous!=''){
if (checkel(previous))
previous.style.backgroundColor=''
previous=eventobj
if (checkel(eventobj))
eventobj.style.backgroundColor=highlightcolor
}
else{
if (checkel(eventobj))
eventobj.style.backgroundColor=highlightcolor
previous=eventobj
}
}

function change_type() {
document.getElementById('uidh').value = document.getElementById('uid').value;
//document.getElementById('uid').value = '******';
document.getElementById('uid').value = '';

}

function checkPassword(form) {
var newpwd = form.newpwd.value;
var confpwd = form.confpwd.value;
var msg = '';
if(newpwd != confpwd) {
	alert("Passwords do not match.");
	form.newpwd.focus();
	return false;}
	
if(newpwd.length < 4 || confpwd.length < 4 ) {
	alert("Password must be at least 4 characters.");
	form.newpwd.focus();
	return false;}

}

function checkForm(form) {

var fstname = form.fstname.value;
var lstname = form.lstname.value;
var emailaddr = form.youremail.value;

var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;

var reg10_digit= /^\d{3}-\d{3}-\d{4}$/;
var reg10digit= /^\d{3}\d{3}\d{4}$/;

var msg = '';

if(fstname.length < 1) {
	alert("First Name Required");
	form.fstname.focus();
	return false;
	}
else if(reg.test(emailaddr) == false) {
      alert('Invalid Email Address');
      form.youremail.focus();
      return false;
}


}

function checkFormEmail(form) {

var emailaddr = form.youremail.value;

var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;

var reg10_digit= /^\d{3}-\d{3}-\d{4}$/;
var reg10digit= /^\d{3}\d{3}\d{4}$/;

var msg = '';

if((reg.test(emailaddr) == false) || (emailaddr.length < 1)) {
      alert('Invalid Email Address');
      form.youremail.focus();
      return false;
}


}