// common.js
var hiddenDiv;

function show(object) { 
//	alert("show " + object);
	if (document.getElementById && document.getElementById(object) != null) { 
		document.getElementById(object).style.visibility='visible'; 
		document.getElementById(object).style.display='block'; 
	} 
	else if (document.layers && document.layers[object] != null) 
		document.layers[object].visibility = 'visible'; 
	else if (document.all) { 
		document.all[object].style.zIndex = 100; 
		document.all[object].style.visibility = 'visible'; 
	} 
} 

function hide(object) { 
//	alert("hide " + object);
	/*if (object == "") return;
	if (document.getElementById && document.getElementById(object) != null) { 
		document.getElementById(object).style.visibility='hidden'; 
		document.getElementById(object).style.display='none'; 
	} 
	else if (document.layers && document.layers[object] != null) 
		document.layers[object].visibility = 'hidden'; 
	else if (document.all) 
		document.all[object].style.visibility = 'hidden'; */
	//hiddenDiv.style.display = 'none';
	document.getElementById(object).style.display = 'none';
} 

var adminDirectories = "undefined";
var adminCategories = "undefined";
function validFileName(fileName, ext) {
	var validDirs = adminDirectories.split("|");
	var errMsg = "The file name is invalid.  It must end with '.jsp' and start with one of the following directories:\n\n";
	if (fileName.startsWith("*")) return true;
	if (fileName.startsWith("popup:")) return true;
	extOK = true;
	if (ext) {
		extOK = fileName.endsWith(ext);
	}
	if (adminDirectories == "SYSTEM" && extOK) {
		return true;
	}
	for(i = 0; i < validDirs.length; i++) {
		if (fileName.startsWith(validDirs[i]) && extOK) {
			return true;
		}
		errMsg += validDirs[i] + "\n";	
	}
	alert(errMsg);
	return false;
}

String.prototype.endsWith=prototypeEndsWith;
function prototypeEndsWith(input) {
	if (this.length >= input.length) {
		checkEnd = this.substring(this.length - input.length,this.length);
		if (checkEnd == input) {
			return true;
		}
	}
	return false;
}

String.prototype.startsWith=prototypeStartsWith;
function prototypeStartsWith(input) {
	if (this.length >= input.length) {
		checkStart = this.substring(0,input.length);
		if (checkStart == input) {
			return true;
		}
	}
	return false;
}

String.prototype.trim = function() {
    // skip leading and trailing whitespace
    // and return everything in between
    return this.replace(/^\s*(\b.*\b|)\s*$/, "$1");
}

function trim(value) {
    if (value != null) {
        return value.replace(/^\s*(\b.*\b|)\s*$/, "$1");
    }
    else {
        return value;
    }
}
function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function isLetter (c)
{   return ( ((c >= "a") && (c <= "z")) || ((c >= "A") && (c <= "Z")) )
}


function isDigit (c)
{   return ((c >= "0") && (c <= "9"))
}


function isLetterOrDigit (c)
{   return (isLetter(c) || isDigit(c))
}

function isWhitespace (s)
{   var i;

    if (isEmpty(s)) return true;

    for (i = 0; i < s.length; i++)
    {
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }

    return true;
}

function isvalidEmailChar (s)
{   var i;

    for (i = 0; i < s.length; i++)
    {
        var c = s.charAt(i);

        if (! (isLetter(c) || isDigit(c) || (c=='@') || (c=='.') || (c=='_') || (c=='-') || (c=='+')) ) {
	       	return false;
		}
    }

    return true;
}

function isEmail (s)
{   if (isEmpty(s))
       if (isEmail.arguments.length == 1) return defaultEmptyOK;
       else return (isEmail.arguments[1] == true);

    if (isWhitespace(s)) return false;
    if (!isvalidEmailChar(s)) return false;

    atOffset = s.lastIndexOf('@');

    if ( atOffset < 1 )
        return false;
    else {
 	dotOffset = s.indexOf('.', atOffset);

      if ( dotOffset < atOffset + 2 ||
         dotOffset > s.length - 2 ) {
         return false;
      }
   }
   return true;
}

function stripTags(s)
{	if (isEmpty(s)) {
		return "";
	}
	temp = "";
	if (s.indexOf('<') == -1) {
		return(s);
	}
	else {
		if (s.indexOf('>') == -1) {
			temp = s.substring(0, s.indexOf('<'));
		}
		else {
			temp = s.substring(0, s.indexOf('<')) + ' ' +  s.substring(s.indexOf('>') + 1);
		}
		return (stripTags(temp));
	}
}


var digits = "0123456789";
var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"
var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
var whitespace = " \t\n\r";
var defaultEmptyOK = false

//Start Calendar Div Code
var disappeardelay=250  //menu disappear speed onMouseout (in miliseconds)
var enableanchorlink=0 //Enable or disable the anchor link when clicked on? (1=e, 0=d)
var hidemenu_onclick=1 //hide menu when user clicks within menu? (1=yes, 0=no)

/////No further editting needed

var ie5=document.all
var ns6=document.getElementById&&!document.all

function getposOffset(what, offsettype){
var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
var parentEl=what.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}

function showhide(obj, e, visible, hidden){
if (ie5||ns6)
dropmenuobj.style.left=dropmenuobj.style.top=-500
if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
obj.visibility=visible
else if (e.type=="click")
obj.visibility=hidden
}

function iecompattest(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
var edgeoffset=-10;
if (whichedge=="rightedge"){
var windowedge=ie5 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
}
else{
var windowedge=ie5 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure)
edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
}
return edgeoffset
}

function showCalendarEvent(obj, e, divID){
if (window.event) event.cancelBubble=true
else if (e.stopPropagation) e.stopPropagation()
if (typeof dropmenuobj!="undefined") //hide previous menu
dropmenuobj.style.visibility="hidden"
clearhidemenu()
if (ie5||ns6){
obj.onmouseout=delayhidemenu
dropmenuobj=document.getElementById(divID)
if (hidemenu_onclick) dropmenuobj.onclick=function(){dropmenuobj.style.visibility='hidden'}
dropmenuobj.onmouseover=clearhidemenu
dropmenuobj.onmouseout=ie5? function(){ dynamichide(event)} : function(event){ dynamichide(event)}
showhide(dropmenuobj.style, e, "visible", "hidden")
dropmenuobj.x=getposOffset(obj, "left")
dropmenuobj.y=getposOffset(obj, "top")
dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
}
return clickreturnvalue()
}

function clickreturnvalue(){
if ((ie5||ns6) && !enableanchorlink) return false
else return true
}

function contains_ns6(a, b) {
while (b.parentNode)
if ((b = b.parentNode) == a)
return true;
return false;
}

function dynamichide(e){
if (ie5&&!dropmenuobj.contains(e.toElement))
delayhidemenu()
else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
delayhidemenu()
}

function delayhidemenu(){
delayhide=setTimeout("dropmenuobj.style.visibility='hidden'",disappeardelay)
}

function clearhidemenu(){
if (typeof delayhide!="undefined")
clearTimeout(delayhide)
}