function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i>a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i>d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function validatePayment() {
	//paymentForm - acctNUmber, ccName, ccType, ccNumber, expMonth, expYear, amount
	var numLength = 16;
	var e = true;
	var expDate = true;
	var alert_str = 'Your payment submission had the following errors:\n\n';
	//check account number
	if(document.paymentForm.acctNumber.value == ''){
		e = false
		alert_str += 'MISSING Ohio State Waterproofing account #.\n';	
	}
	//check ccName
	if(document.paymentForm.ccName.value == ''){
		e = false
		alert_str += 'MISSING name.\n';
	}	
	//check ccType
	if(document.paymentForm.ccType.value == '0'){
		e = false
		alert_str += 'SELECT credit card type.\n';	
	}else{
		if(document.paymentForm.ccType.value == 'amex'){
			numLength = 15;
		}
	}
	//check ccNumber
	if(document.paymentForm.ccNumber.value == '') {
		alert_str += 'MISSING credit card number.\n';
		e = false;
	}else{
		var a = false;
		var b = false;
		var ccNum = document.paymentForm.ccNumber.value;
		for(var s = 0; s < ccNum.length; s++){
			if(ccNum.charAt(s) == ' ' ){
				a = true;
			}else if(isNaN(ccNum.charAt(s)) == true){
				b = true;
			}
		}
		if(b){
			alert_str += 'ERROR credit card number contains illegal characters.\n';
			e = false;
		}			
		if(a){
			alert_str += 'ERROR credit card number contains spaces.\n';
			e = false;
		}
		if((!a)&&(!b)){
			if(ccNum.length != numLength){
				alert_str += 'ERROR credit card number does not contain the correct number of digits.\n';
				e = false;
			}	
		}		
	}
	//check expiration Month	
	if(document.paymentForm.expMonth.value == '0') {
		expDate = false;
	}
	//check expiration Year
	if(document.paymentForm.expYear.value == '0') {
		expDate = false;
	}
	//vaildate expiration date
	if(expDate){
		var today = new Date();
		var mo = today.getMonth() + 1;			
		if(document.paymentForm.expYear.value <= today.getFullYear()){
			if(document.paymentForm.expMonth.value < mo){
				e = false
				alert_str += 'ERROR expiration date occurs in the past.\n';
			}				
		}
	}else{
		alert_str += 'SELECT expiration date.\n';
		e = false;		
	}
	//check amount
	if(document.paymentForm.amount.value == '') {
		alert_str += 'MISSING payment amount.\n';
		e = false;
	}else{
		c = false;
		var amt = document.paymentForm.amount.value;
		for(s = 0; s < amt.length; s++){
			if(isNaN(amt.charAt(s)) == true){
				if(amt.charAt(s) != '.'){
					c = true;
				}
			}
		}
		if(c){
			alert_str += 'ERROR amount contains illegal characters.\n';
			e = false;
		}	
	}			
	if(e)
		return true;
	else {
		alert(alert_str);
		return false;
	}
}

function validateLogin(){
	var e = true;
	var alert_str = 'You must enter both a username and password to login.';
	if(document.loginForm.username.value == ''){
		e = false
	}	
	if(document.loginForm.password.value == ''){
		e = false
	}
	if(e)
		return true;
	else {
		alert(alert_str);
		return false;
	}					
}

function validateLoginUpdate(){
	var e = true;
	var alert_str = 'You must have both a username and password to update.';
	if(document.loginForm.username.value == ''){
		e = false
	}	
	if(document.loginForm.password.value == ''){
		e = false
	}
	if(e)
		return true;
	else {
		alert(alert_str);
		return false;
	}					
}

function validateNews(){
	//date, title, desc
	var e = true;
	var alert_str = 'Your submission had the following errors:\n\n';
	if(document.updateNews.date.value == '') {
		alert_str += 'MISSING article date.\n';
		e = false;
	}else{
		c = false;
		var amt = document.updateNews.date.value;
		for(s = 0; s < amt.length; s++){
			if(isNaN(amt.charAt(s)) == true){
				if(amt.charAt(s) != '/'){
					c = true;
				}
			}
		}
		if(c){
			alert_str += 'ERROR article date contains illegal characters.\n';
			e = false;
		}	
	}
	if(document.updateNews.title.value == ''){
		e = false
		alert_str += 'MISSING article title.\n';
	}
	if(document.updateNews.desc.value == ''){
		e = false
		alert_str += 'MISSING description.\n';
	}	
	if(e)
		return true;
	else {
		alert(alert_str);
		return false;
	}					
}
// Comma separated list of images to rotate
var imgs = new Array('/images/main-center-pic.jpg','/images/main-center-pic2.jpg','/images/main-center-pic4.jpg');
// delay in milliseconds between image swaps 1000 = 1 second
var delay = 10000;
var counter = Math.floor(Math.random() * imgs.length);

function randomImages(){
  if(counter == (imgs.length)){
    counter = 0;
  }
  MM_swapImage('main-pic', '', imgs[counter++]);
  setTimeout('randomImages()', delay);
}