//Check for valid email
function emailCheck (emailStr) {
	/* The following pattern is used to check if the entered e-mail address fits the user@domain format.  
	It also is used to separate the username from the domain. */
	var emailPat=/^(.+)@(.+)$/
	/* The following string represents the pattern for matching all special characters.  
	We don't want to allow special characters in the address. These characters include ( ) < > @ , ; : \ " . [ ]    */
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	/* The following string represents the range of characters allowed in a username or domainname.  
	It really states which chars aren't allowed. */
	var validChars="\[^\\s" + specialChars + "\]"
	/* The following pattern applies if the "user" is a quoted string (in which case, there are no rules 
	about which characters are allowed and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
	var quotedUser="(\"[^\"]*\")"
	/* The following pattern applies for domains that are IP addresses, rather than symbolic names.  
	E.g. joe@[123.124.233.4] is a legal e-mail address. NOTE: The square brackets are required. */
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	/* The following string represents an atom (basically a series of non-special characters.) */
	var atom=validChars + '+'
	/* The following string represents one word in the typical username. For example, in 
	john.doe@somewhere.com, john and doe are words.  Basically, a word is either an atom or quoted string. */
	var word="(" + atom + "|" + quotedUser + ")"
	// The following pattern describes the structure of the user
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	/* The following pattern describes the structure of a normal symbolic domain, as opposed to ipDomainPat, shown above. */
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

	/* Finally, let's start trying to figure out if the supplied address is
	valid. */

	/* Begin with the coarse pattern to simply break up user@domain into
	different pieces that are easy to analyze. */
	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		/* Too many/few @'s or something; basically, this address doesn't
		even fit the general mould of a valid e-mail address. */
		var msg="Email address seems incorrect (check @ and .'s)";
		return msg;
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	// See if "user" is valid 
	if (user.match(userPat)==null) {
		// user is not valid
		alert("The username doesn't seem to be valid.")
		document.mailForm.custEmail.focus()
		return false
	}

	/* if the e-mail address is at an IP address (as opposed to a symbolic
	host name) make sure the IP address is valid. */
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		// this is an IP address
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("Destination IP address is invalid!")
				document.mailForm.custEmail.focus()
				return false
		    }
	    }
		return true
	}

	// Domain is symbolic name
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("The domain name doesn't seem to be valid.")
		document.mailForm.custEmail.focus()
		return false
	}

	/* domain name seems valid, but now make sure that it ends in a
	three-letter word (like com, edu, gov) or a two-letter word,
	representing country (uk, nl), and that there's a hostname preceding 
	the domain or country. */

	/* Now we need to break up the domain to get a count of how many atoms
	it consists of. */
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
		domArr[domArr.length-1].length>3) {
		// the address must end in a two letter or three letter word.
		alert("The address must end in a three-letter domain, or two letter country.")
		document.mailForm.custEmail.focus()
		return false
	}

	// Make sure there's a host name preceding the domain.
	if (len<2) {
		var errStr="This address is missing a hostname!"
		alert(errStr)
		document.mailForm.custEmail.focus()
		return false
	}

	// If we've gotten this far, everything's valid!
	return true;
}
function stringCheck(str){
	//remove whitespace
	str=str.replace(/^\s*(.*?)\s*$/, "$1"); 
	var matchArray=str.match(/[^0-9a-zA-Z]/g);	

	if (matchArray!=null) {
		var m="Invalid characters used";
		return m;
	}
}
//Validate form entries
function validateEmail(em){
	var msg=emailCheck(em);
	if (msg!=true){
		document.getElementById('email').style.color="#ff0000";
		document.forms['regForm'].regEmail.focus();
		alert(msg);
		return false;
	}
	else{
		document.getElementById('email').style.color="#01519A";
		jsrsExecute('http://www.christensenjewelry.com/Registry/registry_list/select_rs.php', notify, 'getEmail', em);										
	}				
}
function notify(stuff){
	if (stuff){
		alert ("We already have a customer with that email address.  Please enter an new address");
		document.getElementById('email').style.color="#ff0000";
		document.forms['regForm'].regEmail.focus();
	}
}
function validateLogin(){
	if (document.forms['login'].loginUser.value!=''){
		var eMsg=emailCheck(document.forms['login'].loginUser.value);	
		if (eMsg!=true){
			document.getElementById("email").style.color="#ff0000";
			alert(eMsg);
			return false;	
		}
	}
	else if (document.forms['login'].loginUser.value==''){
		document.getElementById('email').style.color="#ff0000";
		document.forms['login'].loginUser.focus();
		alert("Missing Information!");
		return false;	
	}

}
function validatePassword(){
	if(!document.forms['approvalForm'].elements['approval'][0].checked && !document.forms['approvalForm'].elements['approval'][1].checked){
		alert ("You need to approve or deny this registry before submitting");
		return false;
	}
	if (document.forms['approvalForm'].giftPass.value!=''){
		var msg=stringCheck(document.forms['approvalForm'].giftPass.value);
		if (msg){
			document.getElementById("giftPass").style.color="#ff0000";
			alert(msg);
			return false;	
		}
	}
}
function getRegShip(){
	if (document.forms["regForm"].same.value=="y"){
		document.forms["regForm"].shipFirst.value=document.forms["regForm"].firstName.value;
		document.forms["regForm"].shipLast.value=document.forms["regForm"].lastName.value;
		document.forms["regForm"].shipAddress.value=document.forms["regForm"].address.value;
		document.forms["regForm"].shipCity.value=document.forms["regForm"].city.value;
		document.forms["regForm"].shipState.selectedIndex=document.forms["regForm"].state.selectedIndex;
		document.forms["regForm"].shipZip.value=document.forms["regForm"].zip.value;
	}
}
function printPage(){
	if (document.all){
		//document.all.buttons.style.visibility="hidden";
		window.print();
		//window.close();
		//document.all.buttons.style.visibility="visible";
	}
	else{
		//document.getElementById("buttons").style.visibility="hidden";
		window.print();
		//window.close();
		//document.getElementById("buttons").style.visibility="visible";
	}
}
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

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_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_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 MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
function dateCheck(ed){
	var DateStr=ed;
	var Bits=DateStr.split("-");
	var theMon=parseInt(Bits[1]);
	var theDay=parseInt(Bits[2]);
	var theYear=parseInt(Bits[0]);
	var temp1=new Date(theYear,theMon-1,theDay);
	temp1=Date.parse(temp1);
	var temp2=Date.parse(Date());
	if (temp1<temp2){
		alert("Date Error!  The date you have chosen is already passed.");
		document.getElementById('eDate').style.color="#ff0000";
		document.forms['regForm'].getDate.focus();
	}
	else {
		document.getElementById('eDate').style.color="#01519A";
	}
}