// Generic useful javascript

var sp = ' ';
var csp = ', ';

// Allows us to supply the name of an element or the element itself to most functions
function $(id) {
	if (typeof id == 'string') return document.getElementById(id);
	return id;
}

function name$(name) {
	if (typeof name == 'string') return document.getElementsByName(name);
	return name;
}

function goBack() {
	history.go(-1);
}

	
function hide(el) {
	el = $(el);
	if (el) el.style.display = 'none';
}
function setVisible(el,visible) {
	if (visible) { show(el); } else { hide(el); }
}

function show(el) {
	el = $(el);
	if (el) el.style.display = '';
}

function toggle(el) {
	el = $(el);
	if (el) el.style.display = (el.style.display == 'none'?'':'none');
}

function space2nbsp(s) {
	while (s.indexOf(' ') >= 0) s = s.replace(' ',' ');
	return s;
}

function maxLength(s,len) {
	if (s.length > len) return s.substring(0,len-2) + '...';
	return s;
}

function HTMLEncode(str) {
	var output = '';
	if (typeof str == 'string') {
		for (var i=0;i<str.length;i++) output += '&#'+str.charCodeAt(i)+';';
	}
	return output;
}

// functions for select, checkbox, radiobox
function setSelected(which, selected) {
	var el = $(which);
	for(var i=0; i<el.options.length; i++) {
		if (el.options[i].value == selected) {
			el.selectedIndex = i;
			break;
		}
	}
}
function setInputValue(which, value) {
	$(which).value = value;
}
function getInputValue(which, value) {
	return $(which).value;
}
function removeOptions(el) {
	while (el.options.length) el.options[0] = null;
}
function removeRows(el) {
	while (el.rows.length) el.deleteRow(0);
}
function addOption(el,desc,value) {
	el.options[el.options.length] = new Option(desc,value);
}
function setCheckboxValues(which, value) {
	var theInput = name$(which);

	if (theInput.length) {
		for (var i=0; i<theInput.length; i++) {
			theInput[i].checked = false;
		}

		if (typeof value == "string") {
			for (var i=0; i<theInput.length; i++) {
				if (theInput[i].value == value) {
					theInput[i].checked = true;
				}
			}
		} else {
			for (var i=0; i<theInput.length; i++) {
				for (var temp in value) {
					if (theInput[i].value == value[temp]) {
						theInput[i].checked = true;
					}
				}
			}
		}
	} else {
		theInput.checked = false;
		if (typeof value == "string") {
			if (theInput.value == value) {
				theInput.checked = true;
			}
		} else {
			for (var temp in value) {
				if (theInput.value == value[temp]) {
					theInput.checked = true;
				}
			}

		}
	}
}
function getCheckboxValues(which) {
	var theInput = name$(which);
	var values = new Array();
	if (theInput.length) {
		for (var i=0; i<theInput.length; i++) {
			if (theInput[i].checked == true) {
				values[values.length] = theInput[i].value;
			}
		}
	} else {
		if (theInput.checked == true) {
				values[values.length] = theInput.value;
		}
	}
	return values;
}

//function openWindow(args) {

	/*	Default args
		args = {name:"myPopupWin", url:"required", width:"520", height:"400"
				, resizable:"yes",  scrollbars:"yes", modalDialog:"false"
				};

	*/
	
	function registerEvent(el,ev,func) {

		if (el.attachEvent) {
			el.attachEvent("on"+ev,func);
		} else if (el.addEventListener) {
			el.addEventListener(ev,func,true);
		}
	}

	function unregisterEvent(el,ev,func) {

		if (el.detachEvent) {
			el.detachEvent("on"+ev, func);
		} else if (el.removeEventListener) {
			el.removeEventListener(ev, func, true);
		}
	}	
function openWindow(url,name,width,height,resizable,scrollbars,enableModal) {

	if (!name) name="Popup_32" + Math.round(Math.random());
	if (!width) width = 800;
	if (!height) height = 600;
	if (!resizable) resizable = 'no';
	if (!scrollbars) scrollbars = 'no';
	if (!resizable) resizable = 'no';
	if (!enableModal) enableModal = false;

	x = parseInt(screen.width / 2.0,10) - (width / 2.0);
	y = parseInt(screen.height / 2.0,10) - (height / 2.0);

	if (window.showModalDialog && resizable == 'no') {
		if (enableModal) {
	        var features = "resizable:" + resizable
	            + ";scroll:"
	            + scrollbars + ";status:yes;center:yes;help:no;dialogWidth:"
	            + width + "px;dialogHeight:" + height + "px;";
			window.showModalDialog(url, window, features);
		} else {
			var win = window.open(url, name, "top=" + y + ",left=" + x + ",scrollbars=" + scrollbars + ",minimizable=" + resizable + ",width=" + width + ",height=" + height + ",resizable=" + resizable);
			win.focus();
			try { win.resizeTo(width, height); } catch(e) { }
		}
	} else {
		var modalDialog = '';
		if (enableModal) {
			modalDialog=',dialog=yes,modal=yes';
		}
		var win = window.open(url, name, "top=" + y + ",left=" + x + ",scrollbars=" + scrollbars + ",minimizable=" + resizable + ",width=" + width + ",height=" + height + ",resizable=" + resizable + modalDialog);
		try { win.resizeTo(width, height); } catch(e) { }

		win.focus();

	}
	/*
	var modalDialog = '';
	if (args['modalDialog'] == 'true') {
		modalDialog=',dialog=yes,modal=yes';
	}

	win = window.open(url, name, "top=" + y + ",left=" + x + ",scrollbars=" + scrollbars + ",minimizable=" + resizable + ",width=" + width + ",height=" + height + ",resizable=" + resizable + modalDialog);
	try { win.resizeTo(width, height); } catch(e) { }
	win.focus();
	*/
}

function BrowserDetector() {

	this.browser = '';
	this.os = '';

	var detect = navigator.userAgent.toLowerCase();

	function checkIt(aString) {
		return detect.indexOf(aString) + 1;
	}

	if (checkIt('konqueror')) {
		this.browser = "Konqueror";
		this.os = "Linux";
	} else if (checkIt('safari')) this.browser = "Safari"
	else if (checkIt('omniweb')) this.browser = "OmniWeb"
	else if (checkIt('opera')) this.browser = "Opera"
	else if (checkIt('webtv')) this.browser = "WebTV";
	else if (checkIt('icab')) this.browser = "iCab"
	else if (checkIt('msie')) this.browser = "Internet Explorer"
	else if (checkIt('firefox')) this.browser = "Firefox"
	else if (!checkIt('compatible')) {
		this.browser = "Netscape Navigator"
	} else {
		this.browser = "Unknown";
	}

	if (!this.os) {
		if (checkIt('linux')) this.os = "Linux";
			else if (checkIt('x11')) this.os = "Unix";
			else if (checkIt('mac')) this.os = "Mac"
			else if (checkIt('win')) this.os = "Windows"
			else this.os = "Unknown";
	}

	this.isIE = this.browser == "Internet Explorer";
	this.isGecko = checkIt('gecko');
}

var browser = new BrowserDetector();

// Return the x coordinate of an element relative to the page.
function getPageOffsetLeft(el) {
	el = $(el);
	var x;
	x = el.offsetLeft;
	if (el.offsetParent != null) x += getPageOffsetLeft(el.offsetParent);
	return x;
}

function getPageOffsetTop(el) {
	el = $(el);
	var y;
	// Return the x coordinate of an element relative to the page.
	y = el.offsetTop;
	if (el.offsetParent != null)  y += getPageOffsetTop(el.offsetParent);
	return y;
}

function phpserialize(o) {
	var r = '';
	var c = 0;
	for (var p in o) {
		if (typeof o[p] == 'object') {
			r += 's:'+p.toString().length+':"'+p.toString()+'";';
			r += phpserialize(o[p]);
		} else {
			r += 's:'+p.toString().length+':"'+p.toString()+'";';
			r += 's:'+o[p].toString().length+':"'+o[p].toString()+'";';
		}
		c++;
	}
	return 'a:'+c+':{'+r+'}';
}
function phpdeserialize(o) {
	
	/*var r = '';
	var c = 0;
	for (var p in o) {
		r += 's:'+p.length+':"'+p+'";';
		r += 's:'+o[p].length+':"'+o[p]+'";';
		c++;
	}
	o = 'a:'+c+':{'+o+'}';*/
}

function objectDump(o,theMaxDepth,theDepth) {
	var maxDepth = theMaxDepth
	if (maxDepth == null) maxDepth = 2;

	var depth = theDepth;
	if (depth == null) depth = 1;
	var s = '';
	if (typeof o == "string") {
		s = '<code>'+escapeHTML(o)+'</code>';
	} else {
		for (var prop in o) {
			try {
				if (typeof o[prop] == 'object') {
					if (depth < maxDepth) {
						s += prop + ' = [object] <ul>' + objectDump(o[prop],maxDepth,depth+1) + '</ul>';
					} else {
						s += prop + ' = [object] **trimmed**<br>';
					}
				} else {
					s += prop + ' = ['+(typeof o[prop])+'] <code>' + escapeHTML(o[prop]) + '</code><br>';
				}
			} catch (exception) {
				s += prop + ' = [error displaying \''+(typeof o[prop])+'\' value]' + '<br>';
			}
		}
	}
	return s;
}

function dump(o,desc,target,maxDepth) {
	var s = '';
	if (typeof desc != 'undefined') s+= desc+' =  ';

	s += '['+(typeof o)+']';
	s += '<ul>'+objectDump(o,maxDepth)+'</ul>';

	if (target) {
		$(target).innerHTML = s;
	} else {
		var newwin = window.open();
		newwin.document.write(s);
	}
}



function makeDivWithClass(className) {
	var div = document.createElement("div");
	div.className = className;
	return div;
}


function makeNestedDivsWithClasses(classNames,innerDiv) {
	var divs = new Array();
	var i;
	for (i=0; i<classNames.length; i++) divs[i] = makeDivWithClass(classNames[i]);
	for (i=0; i<classNames.length-1; i++) divs[i].appendChild(divs[i+1]);
	if (innerDiv) divs[classNames.length-1].appendChild(innerDiv);
	return divs[0];
}

var W3CDOM = (document.createElement && document.getElementsByTagName);

var mouseOvers = new Array();
var mouseOuts = new Array();

var mouseover_call;
function loadMouseOvers(container,modifier,className,callOnMouseOver) {
	if (!W3CDOM) return;
	var imgs = $(container).getElementsByTagName('img');

	mouseover_call = callOnMouseOver;
	if (!mouseover_call) mouseover_call = null;
	for (var i=0; i<imgs.length; i++) {
		if (imgs[i].className == className) {
			imgs[i].style.cursor = 'pointer';
			var suffix = imgs[i].src.substring(imgs[i].src.lastIndexOf('.'));
			var j = mouseOvers.length;
			mouseOuts[j] = new Image();
			mouseOuts[j].src = imgs[i].src;
			mouseOvers[j] = new Image();
			mouseOvers[j].src = imgs[i].src.substring(0,imgs[i].src.lastIndexOf('.')) + modifier + suffix;
			imgs[i].number = j;
			imgs[i].onmouseover = mouseGoesOverImage;
			imgs[i].onmouseout = mouseGoesOutImage;
		}
	}
}

function mouseGoesOverImage() {
	if (typeof(mouseOvers) != 'undefined' && mouseOvers[this.number] && this.src != mouseOvers[this.number].src) this.src = mouseOvers[this.number].src;
	if (typeof(mouseover_call) != 'undefined' && mouseover_call != null) mouseover_call(this);
}

function mouseGoesOutImage() {
	if (typeof(mouseOuts) != 'undefined' && mouseOuts[this.number] && this.src != mouseOuts[this.number].src) this.src = mouseOuts[this.number].src;
}


var hover_call_onmouseover;
function loadHovers(container,elType,className,hoverClassName,callOnMouseOver) {

	if (!W3CDOM) return;
	var els = $(container).getElementsByTagName(elType);
	hover_call_onmouseover = callOnMouseOver;
	if (!hover_call_onmouseover) hover_call_onmouseover = null;

	for (var i=0; i<els.length; i++) {
		if (els[i].className == className || className == '') {
			els[i].originalClassName = els[i].className;
			els[i].hoverClassName = els[i].className+' '+hoverClassName;
			els[i].onmouseover = mouseGoesOverElement;
			els[i].onmouseout = mouseGoesOutElement;
		}

	}
}
function mouseGoesOverElement() {
	if (this.hoverClassName) this.className = this.hoverClassName;
	if (typeof(hover_call_onmouseover) != 'undefined' && hover_call_onmouseover != null) hover_call_onmouseover(this);
}
function mouseGoesOutElement() {
	if (this.originalClassName) this.className = this.originalClassName;
}


function loadHoversCustom(container,elType,className,mouseOverEl,mouseOutEl,initEl) {

	if (!W3CDOM) return;
	var els = $(container).getElementsByTagName(elType);

	for (var i=0; i<els.length; i++) {
		if (els[i].className == className || className == '') {
			if (initEl) initEl(els[i]);
			els[i].onmouseover = mouseOverEl;
			els[i].onmouseout = mouseOutEl;
		}
	}
}


// Stop people highlighting things by accident
function disableselect(e) {
}
function reEnable(){
	return true;
}

var omitformtags= "input|textarea|select";
function stopHighlight(target) {
	target = $(target);
	if (typeof target.onselectstart != "undefined") {
		// IE
		target.onselectstart = function () {
			if (omitformtags.indexOf(window.event.srcElement.tagName.toLowerCase())==-1) return false;
		}
	} else {
		// others
		target.onmousedown = function(e) {
			if (omitformtags.indexOf(e.target.tagName.toLowerCase())==-1) return false;
		}
		target.onmouseup = function() {
			return true;
		}
	}
}

function hasClassName(el,className) {
	var classes = el.className.split(' ');
	for (var i=0; i<classes.length; i++) if (classes[i] == className) return true;	
	return false;
}

function addClassName(el,className,excludeClassName) {
	// Only add it if it doesn't have the excludeClassName or the new className already
	if (hasClassName(el,className)) return;
	if (typeof excludeClassName != 'undefined' && hasClassName(el,excludeClassName)) return;
	el.className += ' '+className;
}

function removeClassName(el,className) {
	var classes = el.className.split(' ');
	var newClasses = [];
	for (var i=0; i<classes.length; i++) {
		if (classes[i] != className) newClasses.push(classes[i]);
	}
	el.className = newClasses.join(' ');
	
}

var is_ie = (navigator.appName == "Microsoft Internet Explorer");

function getURLContent(url) {
	var req = null;
 	if (typeof XMLHttpRequest != 'undefined') {
		req = new XMLHttpRequest();
	} else {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	}

	// Synchronous!
	req.open('GET', url, false);
	try {
		req.send(null);
		if (req.status == 200) {
			return req.responseText;
		} else {
			return '';
		}
	} catch (e) {
		return '';
	}
}

var http_request = false;
var http_request_callOnReady;

function urlRequest(url, callOnReady) {
    http_request = false;

    if (window.XMLHttpRequest) { // Mozilla, Safari,...
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/xml');
            // See note below about this line
		}
    } else if (window.ActiveXObject) { // IE
        try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    }

    if (!http_request) {
		//alert('Giving up :( Cannot create an XMLHTTP instance');
        return false;
    }

    http_request_callOnReady = callOnReady;
	http_request.onreadystatechange = function() {
	  if (typeof(http_request) != 'undefined' && http_request.readyState == 4) {
	    if (http_request.status == 200) {
			http_request_callOnReady(http_request.responseText);
	    }
	  }
    }

    //eval(callOnReady);
    http_request.open('GET', url, true);
    http_request.send(null);
    return true;
}
//function callResult

function strippx(string) {
	return parseFloat(string.replace('px',''));
}

function getInputHelp(helpid) {
	alert('get help' +helpid);
}

function disableBackspace() {
	document.onkeydown = function() {
		var omitformtags= "input,textarea";
		if (window.event && window.event.keyCode == 8) { // try to cancel the backspace
			if (omitformtags.indexOf(window.event.srcElement.tagName.toLowerCase())==-1) {
				window.event.cancelBubble = true;
				window.event.returnValue = false;
				return false;
			}
		}
	}
}

function MDIFixForIE() {
	if (browser.isIE) $('MDIDocumentContent').style.overflow = 'auto';
}

function isDefined(varName) {
	return (typeof(eval(varName)) != 'undefined');
}

function showandhide(which, msg, duration) {

	var preMSG = $(which).innerHTML;
	$(which).innerHTML = msg;
	show(which);
	if (!duration) duration = 3;
	setTimeout("hide('"+which+"');$('"+which+"').innerHTML = '"+preMSG+"';",duration*1000); // duration is in second and arg is in millisecond

}

function hidePleaseWait() {
	hide('PleaseWait');
}

function showPleaseWait() {
	var plz = $('PleaseWait');
	if (plz != null) {
		plz.innerHTML = 'Please wait...';
		show(plz);
	}
}

function validateKeypress(regExp,event,err) {
	var key;
	if (window.event) key = window.event.keyCode; else if (event) key = event.which; else return true;
	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27)) return true;

	var re = new RegExp(regExp);
	if (re.exec(String.fromCharCode(key)) == null) {
		return true;
	} else {
		if (err.length > 0) alert(err);
		return false;
	}
}

function enableAdminButton(name) {
	$(name).disabled = false;
	$(name+'AdminButtonDiv').className = 'adminButtonNew';
}
function disableAdminButton(name) {
	$(name).disabled = true;
	$(name+'AdminButtonDiv').className = 'adminButtonNewDisabled';
}
function hideAdminButton(name) {
	hide(name+'AdminButtonDiv');
}
function showAdminButton(name) {
	show(name+'AdminButtonDiv');
}

function makeValidString(regExp,s,err) {
	var re = new RegExp(regExp);
	var result = '';
	var gotError = false;
	for (var i=0; i<s.length; i++) {
		if (re.exec(s.charAt(i)) == null)
			result += s.charAt(i);
		else {
			if (!gotError && err.length > 0) alert(err);
			gotError = true;
		}
	}
	return result;
}


var menu_preloaded_images = new Array();

function menuPreloadImages(theImages) {
	for (var i=0;i<theImages.length;i++) {
		var tmp = new Image();
		tmp.src = theImages[i];
		menu_preloaded_images[menu_preloaded_images.length] = tmp;
	}
}

function plimg(theImages) {
	menuPreloadImages(theImages);
}

function init_sfhovers() {
	if (typeof sfmenus != 'undefined') {
		for(var j=0; j<sfmenus.length; j++) {
			var sfEls = document.getElementById("menu_"+sfmenus[j]).getElementsByTagName("LI");
			for (var i=0; i<sfEls.length; i++) {
				sfEls[i].onmouseover=function() { this.className+=" sfhover"; }
				sfEls[i].onmouseout=function() { this.className=this.className.replace(new RegExp(" sfhover\\b"), ""); }
			}
		}
	}
}

function enterkeyPressed(e) {
    var key;
    var keychar;

    if (window.event)
       key = window.event.keyCode;
    else if (e)
       key = e.which;
	else
       return true;
    keychar = String.fromCharCode(key);
    keychar = keychar.toLowerCase();

    // control keys
    if ((key==13))
       return true;

    return false;

}

function dec2hex(d,padding) {
	var h = parseInt(d,10).toString(16);
	if (typeof(padding) != 'undefined') while (h.length < padding) h = '0'+h;
	return h;
}
function hex2dec(h) {
	return parseInt(h,16);
}
function isHex(h) {
	var hex = "0123456789ABCDEF";
	for (var i=0;i<h.length;i++) if (hex.indexOf(h.charAt(i)) == -1) return false;
	return true;
}

function nicePath(path) {
	return path.replace(/ /g,'_').toLowerCase();
}

function URLEncode(value) {
	return encodeURIComponent(value);
}

function URLDecode(value) {
	return decodeURIComponent(value);
}

function escapeHTML(str) {
	var result = new String(str).replace(/&/g,"&amp;");
	result = result.replace(/</g,"&lt;");
	result = result.replace(/>/g,"&gt;");
	result = result.replace(/"/g,"&quot;");
	return result;
}

function typeOf(value) {
	var s = typeof value;
	if (s === 'object') {
		if (value) {
			if (value instanceof Array) {
				s = 'array';
			}
		} else {
			s = 'null';
		}
	}
	return s;
}

// Source: http://www.quirksmode.org/dom/getstyles.html 
function getStyle(el,styleProp) {
	var x = $(el);
	if (x.currentStyle)
		var y = x.currentStyle[styleProp];
	else if (window.getComputedStyle)
		var y = document.defaultView.getComputedStyle(x,null).getPropertyValue(styleProp);
	return y;
}