//Top Navigation text rollover
var x;



function overnav(obj) {
    x = obj.className;
    obj.className = (x + "b");
}

function outnav(obj) {
    obj.className = x;
}




function overpath(obj) {
    x = obj.className;
    obj.className = "pao";
}

function outpath(obj) {
    obj.className = x;
}

//Side navigation image rollover
function imgOn(imgName) {
   if (document.images) {
       document[imgName].src = eval(imgName + "on.src");
   }
}

function imgOff(imgName) {
   if (document.images) {
       document[imgName].src = eval(imgName + "off.src");
   }
}

// Pop-up window
var XWin = null 
Count = 0
var Name = "XWin"
function openXWin(URL, Width, Height){
  Name = "XWin" + Count++
  closeXWin()       
   XWin = window.open(URL, Name, "width=" + Width + ",height=" + Height +",scrollbars=yes,resizable=no,toolbar=no,status=no,menu=no")
}
function closeXWin(){   
    if(XWin != null) 
	if(!XWin.closed) 
		XWin.close()   
}

function GoTo(URL)
{
    self.location=URL;
}


//EMAIL validation code
/* Changes:  Sandeep V. Tamhankar (stamhankar@hotmail.com)

   1.1.2: Fixed a bug where trailing . in e-mail address was passing
            (the bug is actually in the weak regexp engine of the browser; I
            simplified the regexps to make it work).
   1.1.1: Removed restriction that countries must be preceded by a domain,
            so abc@host.uk is now legal.  However, there's still the 
            restriction that an address must end in a two or three letter
            word.
     1.1: Rewrote most of the function to conform more closely to RFC 822.
     1.0: Original  

	The JavaScript Source!! http://javascript.internet.com
	
	Code does not catch address ending in .co
*/

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. */
	alert("Email address seems incorrect (check @ and .'s)")
	return false
}
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.")
    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!")
		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.")
    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.")
   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)
   return false
}

//added by Kirsten Singleton
if (emailStr.substring(emailStr.length -2,emailStr.length) =="co") {
   // if end in .co this is not correct.
   alert("Your email address cannot end in .co - perhaps you mean .com or .co.uk")
   return false
}

// If we've gotten this far, everything's valid!
return true;
}
//end email validation


//FORM VALIDATION
function verify(f) { 

 for (var i=0; i <f.length; i++) //check each control in turn
 { 
   var e=f.elements[i];
  // alert ("Type is " + e.type + " value= " + e.value + " Name is " + e.name);

   if (e.type == "password")
   	if (e.value == null || e.value == "") {
   		alert("You must enter a password in both fields");
		e.focus();
		return (false);
	}
   
   //TEXTFIELD - 
   //email
   if (e.type == "text")
   {
   	var Req = new Array ("R_EMAIL", "R_URL1", "R_EMAIL1", "R_CNTNAME", "R_CNTTEL", "R_INVNAME", "R_INVADDR1", "R_INVPOSTCODE", "R_INVTEL");
   	//alert ("Req0 is " + Req[0] + ", type is " + e.type + " value= " + e.value + " req length is " + Req.length);

	//alert("Substring 2-7 is " + e.name.substring(2,7)); //here 1
	if((e.name.substring(2,7) == "EMAIL") && e.value != "")
	{
		//alert("substring is  equal to email now should check mail - if 82"); //here 2
		//check email
	 	if(!emailCheck(e.value))
	 	{
	 	//alert("failed check mail function - if 82-86"); //here 4  but then does not break!
	 	e.focus();
	 	return (false);
	 	}
	}
	else
	{
		for(var x=0; x > Req.length; x++)
		{
			if((e.name == Req[x]) && (e.value == null || e.value == ""))
			{      
			     alert("This field is required, please enter a value");
			     e.focus();
			     return (false);
			 }
		}
	}

   }

   //CHECKBOX - if not selected set value to 0
   if ((e.type == "checkbox") && !e.checked) {
      e.value = "0";
   }

   //RADIOBUTTONS
   if ((e.type == "radio")  ) {
     var Qn = e.name;  // name of button group
     var nb = eval("f." + Qn + ".length");  // no of buttons in group
     var OK = false;  //checked status
     i = (i+nb)-1; //increment i to end of group
     //check to see if one is selected
     for(var c=0; c<nb; c++) {
       if(eval("f." + Qn + "[c].checked")){
         OK =  true;
         break;
       }
     }
     if(!OK){
       if (Qn.substring(1,3) > lastQn){ //From last requires Qn just set value to 0
        e.value = "0";  
       } else {
         alert("Please make a selection for " + Qn);
         e.focus();
         return (false);
       }
     }
   } //end of radio button group


 } //end of for loop
} //end of validation