// JavaScript Document
var news=new Array();

function checkSendEmail()
{
	with (window.document.frmContact) {
		if (isEmpty(txtUserFirstName)) {
			alert('Enter Your First Name!');
			txtUserFirstName.focus();			
			return;
		} else if (isEmpty(txtUserLastName)) {
			alert('Enter Your Last Name!');
			txtPassword.focus();						
			return;
		} else if (!emailCheck(txtEmail.value)) {
			alert('Please enter a valid email address!');
			txtEmail.focus();						
			return;			
		} else {
			submit();
		}
	}	
}

function checkModifyUserForm()
{
	with (window.document.frmAddUser) {
		if (isEmpty(txtRegisterUserName)) {
			alert('Enter Your User Name!');
			txtUserName.focus();			
			return;
		} else if (cboCountry.value=='') {
			alert('Select the Country!');
			cboCountry.focus();			
			return;
		} else if (!emailCheck(txtEmail.value)) {
			alert('Please enter a valid email address!');
			txtEmail.focus();						
			return;			
		} else {
			submit();
		}
	}
}

function checkAddUserForm()
{
	with (window.document.frmAddUser) {
		if (isEmpty(txtRegisterUserName)) {
			alert('Enter Your User Name!');
			txtUserName.focus();			
			return;
		} else if (isEmpty(txtRegisterPassword)) {
			alert('Enter Your Password!');
			txtPassword.focus();						
			return;
		} else if (cboCountry.value=='') {
			alert('Select the Country!');
			cboCountry.focus();			
			return;
		} else if (!emailCheck(txtEmail.value)) {
			alert('Please enter a valid email address!');
			txtEmail.focus();						
			return;			
		} else {
			submit();
		}
	}
}

function displayThumbnail(imageId)
{
	navRoot = document.getElementById("image" + news[0]);
	if (navRoot)
	{
		navRoot.className="displayContainer"
	}
	showThumbnail(imageId);
}

function showThumbnail(imageId)
{
	news[0] = imageId;
	
	navRoot = document.getElementById("image" + news[0]);
	if (navRoot)
	{
		navRoot.className+=" show";
	}
}

function popUpImage(URL, w, h) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=" + w + " ,height=" + h + "');");
}

function OnOff(categoryId)
{
	setHeightAuto();
	navRoot = document.getElementById("btnLeft" + categoryId);
	if (navRoot)
	{
		if (navRoot.className == "btn_left_arrow")
		{
			navRoot.className+=" open";
		}else{
			navRoot.className=navRoot.className.replace(" open", "");
		}
	}

	navRoot = document.getElementById("menuLeft" + categoryId);
	if (navRoot)
	{
		if (navRoot.className == "leftSubMenuList")
		{
			navRoot.className+=" on";
		}else{
			navRoot.className=navRoot.className.replace(" on", "");
		}
	}
	setColumnsHeight();
}

function displayNews(parentId, newsId)
{
	navRoot = document.getElementById("news" + news[parentId]);
	if (navRoot)
	{
		navRoot.className="displayContainer"
	}
	showNews(parentId, newsId);
}

function showNews(parentId, newsId)
{
	news[parentId] = newsId;
	
	navRoot = document.getElementById("news" + newsId);
	if (navRoot)
	{
		navRoot.className+=" show";
	}
}

function startList() 
{
	if( document.getElementById && document.childNodes && document.createElement ) {	
		navRoot = document.getElementById("menu0");
		var listitems= navRoot.getElementsByTagName("li")		
		for (i=0; i<listitems.length; i++) {
			node = listitems[i];			
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+="over";
				}
				node.onmouseout=function() {
					this.className="";
				}				
			}			
		}
	}
}

function setHeightAuto()
{
	if( document.getElementById && document.childNodes && document.createElement ) {
		
		var leftColumn = document.getElementById("leftColumnSmall");
		var rightColumn = document.getElementById("right");
		var centerColumn = document.getElementById("center");		
		
		if (leftColumn) leftColumn.style.height = "auto";
		if (rightColumn) rightColumn.style.height = "auto";
		if(centerColumn) centerColumn.style.height =	"auto";	
	}
}

function setColumnsHeight()
{
	if( document.getElementById && document.childNodes && document.createElement ) {

		var browserDetails = new Array();
		var browserVersion = new Array();
		var detect = navigator.userAgent.toLowerCase();
		var isMSIE = detect.indexOf("msie");
		
		if(isMSIE > 0)
		{
			browserDetails = detect.split(";");
			browserVersion = browserDetails[1].split("msie");
		}
		
		var leftColumn = document.getElementById("leftColumnSmall");
		var rightColumn = document.getElementById("right");
		var centerColumn = document.getElementById("center");
				
		if(centerColumn)
		{
			if(browserVersion[1] > 6)
			{
				var centerColumnHeight = centerColumn.offsetHeight - 4;
			}else{
				if(browserVersion[1] > 5)
				{
					var centerColumnHeight = centerColumn.offsetHeight - 18;
				}else{
					var centerColumnHeight = centerColumn.offsetHeight - 11;
				}
			}

			if(leftColumn)
			{
				var leftColumnHeight = leftColumn.offsetHeight;

				if(leftColumnHeight < centerColumnHeight)
				{
					leftColumn.style.height = centerColumnHeight + "px";
				}
			}				

			if(rightColumn)
			{
				var rightColumnHeight = rightColumn.offsetHeight;
				
				if(rightColumnHeight < centerColumnHeight)
				{
					rightColumn.style.height = centerColumnHeight + "px";
				}
			}
		}		
	}
}

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
}

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