var popup_count = 0;
function Popup_Window (name, width, height, replace_win, xpos, ypos, scrollbars, resizable, status, toolbar, menubar) {
	if(!replace_win) {
		popup_count++;
		var popup_name = 'win'+popup_count;
	} else {
		var popup_name = 'win';
	}
	if(!width) width=400;
	if(!height) height=250;
	if(height > (screen.height - 20)) height = (screen.height - 20);
	if(!xpos) xpos = (screen.width - width) / 2;
	if(!ypos) ypos = (screen.height - 20 - height) / 2;
	if(!scrollbars) scrollbars = 'yes';
	if(!resizable) resizable = 'yes';
	if(!status) status = 'yes';
	if(!toolbar) toolbar = 'no';
	if(!menubar) menubar = 'no';
	popup_window = window.open(name, popup_name, 'width='+width+',height='+height+',screenx='+xpos+',screeny='+ypos+',left='+xpos+',top='+ypos+',scrollbars='+scrollbars+',resizable='+resizable+',status='+status+',toolbar='+toolbar+',menubar='+menubar);
	if (popup_window.opener == null) popup_window.opener = self;
	popup_window.focus();
}

if(!PreviewWin)
{
	var PreviewWin;
}
function newWindow(url) 
{

	if (PreviewWin && !PreviewWin.closed)
	{
		PreviewWin.close();
	}

	PreviewWin = window.open(url, 'MyWin'); 
	PreviewWin.focus();
}


function isEmailValid (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;
}


//used in /generics/classes/subscription.class
function display_pd_access_denied(level){
	window.open('include/html/PD_access_denied.inc.php',null,'width=500, height=400,menubar=no,status=no');
}