function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != "function") {
		window.onload = func;
	} else {
		window.onload = function() {
			if (oldonload) {
				oldonload();
			}
				func();
			}
	}
}

function isValidEmail(email, required) {
    if (required==undefined) {   // if not specified, assume it's optional
        required=false;
    }
    if (email==null) {
        if (required) {
            return false;
        }
        return true;
    }
    if (email.length==0) {  
        if (required) {
            return false;
        }
        return true;
    }
    if (! allValidChars(email)) {  // check to make sure all characters are valid
        return false;
    }
    if (email.indexOf("@") < 1 || email.indexOf("@") > eval(email.length - 5)) { //  must contain @, and it must not be the first character
        return false;
    } else if (email.lastIndexOf(".") <= email.lastIndexOf("@")) {  // last dot must be after the @
        return false;
    } else if (email.indexOf("@") != email.lastIndexOf("@")) {  // must not contain two @'s
        return false;
    } else if (email.length-email.lastIndexOf(".") < 3) {  // dot must have at least 2 characters behind it
        return false;
    }
	
    return true;
}

function allValidChars(email) {
  var parsed = true;
  var validchars = "abcdefghijklmnopqrstuvwxyz0123456789@.-_";
  for (var i=0; i < email.length; i++) {
    var letter = email.charAt(i).toLowerCase();
    if (validchars.indexOf(letter) != -1)
      continue;
    parsed = false;
    break;
  }
  return parsed;
}

function colorBorder(box,color){
	if (box==null) return;
	box.style.borderColor=color;
}

function checkForm(nform){
	result = true;
	vform = document.forms[nform];
	if (nform.substr(0,11) == "frm_comment"){
		if (!isValidEmail(vform.email.value,true)||vform.email.value==""){
			colorBorder(vform.email, "red");
			result = false;
		} else {
			colorBorder(vform.email, "gray");
		}
		if (vform.name.value==""){
			colorBorder(vform.name, "red");
			result = false;
		} else {
			colorBorder(vform.name, "gray");
		}
		if (vform.homepage.value!=""&&vform.homepage.value.indexOf(".")<2){
			colorBorder(vform.homepage, "pink");
		} else {
			colorBorder(vform.homepage, "gray");
		}
		if (vform.comment.value==""){
			colorBorder(vform.comment, "red");
			result = false;
		} else {
			colorBorder(vform.comment, "gray");
		}
	}
return result;
}

function get_root(){
	return "/";
}

var picWindow;
function iPop(u, w, h, d) {
	var doc = "showpic";
	if (/collection=/.test(u)){
		w=910;
		h=700;
		doc = "showslide";
	} 
	if (picWindow!=null && !picWindow.closed){
		if (document.all) {
			l = picWindow.screenLeft-12+(picWindow.document.body.offsetWidth/2)-(w/2);
	  		t = picWindow.screenTop-35+(picWindow.document.body.offsetHeight/2)-(h/2);
		} else {
			l = picWindow.screenX-10+(picWindow.outerWidth/2)-(w/2);
			t = picWindow.screenY-23+(picWindow.outerHeight/2)-(h/2);
		}		
		picWindow.close();
	} else {
		l = (screen.availWidth/2) - (w/2);
		t = (screen.availHeight/2) - (h/2);		
	}
	w+=12;
	h+=20;
	var p;
	if (screen) {
		if (w > screen.availWidth) {
			w = screen.availWidth;
			p = ",scrollbars=yes";
			h=h+24;
		}
 		if (h > screen.availHeight) {
			h = screen.availHeight;
			p = ",scrollbars=yes";
			w=w+24;
		}
	}
	if (d=="") d = get_root();
	
	picWindow = window.open(d+"jcms/"+doc+".php?"+u, "Image", "width="+w+",height="+h+",left="+l+",top="+t+",sreenX="+l+",screenY="+t+",resizable,status=no"+p);
		
	if (picWindow) {picWindow.focus();}
}

function toggle(item, mode){
	if (mode==null) mode="block";
	var ShowItems=document.getElementById(item).style;
	if (ShowItems.display=="none"){
		ShowItems.display=mode;
	} else {
		ShowItems.display="none";
	}
}

function toggle_img(item, img1, img2){
	var img = document.getElementById(item);
	var regex = /^.*\/jcms\//
	var urlbase = regex.exec(img.src);
	if(img.src==urlbase+img2){
		img.src=urlbase+img1;
	} else {
		img.src=urlbase+img2;
	}
}



var timeoutId;
var interval = 5000;

function setCloseLink(){
	if (opener) document.getElementById("closelink").href="javascript:self.close();";
}

function slideShow(ctrl){
	var ret;
	var frm = document.getElementById("frmSlide");
	var inputs = frm.getElementsByTagName("input");
	for (var i=0;i<inputs.length;i++){
		if (/submit/.test(inputs[i].type)){
			var sb = inputs[i];
			break;
		}
	}
	var thumbs = document.getElementById("thumbs").getElementsByTagName("img");
	for (var i=0;i<thumbs.length;i++){
		if (thumbs[i].className=="shown"){
			var currImg = thumbs[i].id.substring(1);
			break;
		}
	}
	var imgs = imglist.split("|");
	for(i=0;i<imgs.length;i++){
		if (imgs[i] == currImg){
			if (i == (imgs.length-1)){
				if (ctrl == "start"){
					var nextImg = imgs[0];
				} else {
					ctrl = "stop";
				}
			} else {
				var nextImg = imgs[i+1];
				if (i == (imgs.length-2)){
					interval = 500;
				}
			}
			break;
		}
	}
	if (ctrl == "start"){
		sb.value = "Stop";
		frm.onsubmit = function(){return slideShow("stop");}
		ret = showContentImage(1, nextImg);
		timeoutId = window.setTimeout("slideShow('next')", interval);
		ret = false;
	} else {
		if (ctrl == "stop") {
			sb.value = "Start";
			frm.onsubmit = function(){return slideShow("start");}
			ret = false;
		} else { // next
			if (sb && sb.value != "Start"){
				ret = showContentImage(1, nextImg);
				timeoutId = window.setTimeout("slideShow('next')", interval);
			} else {
				ret = false;
			}
		}
	}
	return ret;
}
function restartSlide(){
	clearTimeout(timeoutId);
	timeoutId = window.setTimeout("slideShow('next')", interval);
}

var http_request = false;
function getHttpObject() {

	http_request = false;

	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType("text/xml");
        }
    } else if (window.ActiveXObject) { // IE
        try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
            http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    }
	
	return http_request;
}

function getvalue(xmlobj, tagname){
	try {
		tagvalue = xmlobj.getElementsByTagName(tagname)[0].firstChild.data;
	} catch (e){
		tagvalue = "";
	}
	return tagvalue;
}

function showContentImage(cid, imageid, nav){
	if (nav==null) nav = true;
	var imgdiv = document.getElementById("img"+cid);
	if (!imgdiv) return false;
	var imgloaddiv = document.getElementById("imgload"+cid);
	var imgtextdiv = document.getElementById("imgtext"+cid);
	if (imgloaddiv) imgloaddiv.innerHTML = "<img src='"+get_root()+"jcms/gfx/zandloper.gif' width='16' height='16' alt='wait' /> loading image...";
	if (!(http_request = getHttpObject())){
		imgdiv.innerHTML = "Unable to display the image.";
		if (imgloaddiv) imgloaddiv.innerHTML = "";
		return true;
	}
	var url = get_root()+"jcms/return.php?img="+imageid;
	http_request.onreadystatechange = function(){
		    if (http_request.readyState == 4) {
		        if (http_request.status == 200) {
		        	var ret = http_request.responseXML;
		        	if (imgtextdiv) imgtextdiv.innerHTML="<small>("+getvalue(ret,"views")+" views)</small> "+getvalue(ret, "caption")+"<br /><small>"+getvalue(ret, "description")+"</small>";
		        	imgdiv.innerHTML="<img src='"+get_root()+getvalue(ret, "file")+"' width='"+getvalue(ret, "width")+"' height='"+getvalue(ret, "height")+"' alt='"+getvalue(ret, "caption")+"' />";
		        	if (nav==true){
 		        		setNav(cid, imageid);
						restartSlide();
					} else {
						var today = new Date();
						var cookietime = new Date();
						cookietime.setTime(today.getTime()+3600000*24*7); 
						document.cookie = "img_"+cid+"="+imageid+";path="+get_root()+";"+";expires="+cookietime.toGMTString();
					}
		        } else {
		        	imgdiv.innerHTML="Unable to display the image.";
		        }
				if (imgloaddiv) imgloaddiv.innerHTML = "";
			    return false;
		    }
	}
    http_request.open("GET", url, true);
    http_request.send(null);
    return false;
}

function setNav(cid, imageid){
	var divprev = document.getElementById("imgprev");
	var divnext = document.getElementById("imgnext");
	var listarray = imglist.split("|");
	var url = document.URL;
	var uid = /img=([0-9]+.*)/.exec(url);
	if (uid){
		url = url.substring(0, url.length-uid[1].length);
	} else {
		if (/\?/.test(url)){
			url += "&img=";
		} else {
			url += "?img=";
		}
	}
	setThumbShown(imageid);
	for (var i=0; i < listarray.length;i++){
		if(listarray[i]==imageid){
			if (i!=0){
				divprev.className="enabled";
				var previd = listarray[i-1];
				divprev.href=url+previd;
				divprev.onclick=function(){return showContentImage(cid, previd);}
			} else {
				divprev.className="disabled";
				divprev.href="#";
				divprev.onclick=function(){this.blur();return false}
			}
			if (i!=(listarray.length-1)){
				divnext.className="enabled";
				var nextid = listarray[i+1];
				divnext.href=url+nextid;
				divnext.onclick=function(){return showContentImage(cid, nextid);}
			} else {
				divnext.className="disabled";
				divnext.href="#";
				divnext.onclick=function(){this.blur();return false}
			}
			return;
		}
	}
}

function setThumbShown(imageid){
	var thumbs = document.getElementById("thumbs").getElementsByTagName("img");
	for (var i=0;i<thumbs.length;i++){
		if (thumbs[i].id=="t"+imageid){
			thumbs[i].className="shown";
			thumbs[i].scrollIntoView(false);
		} else {
			thumbs[i].className="";
		}
	}
}

function reloadImages(imgName, imgTimer){
	if (document.images){
		var now = new Date();
		for (var i=0; i<document.images.length; i++){
			var img = document.images[i];
			if (img.name.substr(0,imgName.length)==imgName && imgName!="img"){
				var tmp = img.src.split("?");
				img.src = tmp[0]+"?"+now.getTime();
// alert(img.src);
			}
		}
	}
	setTimeout("reloadImages('"+imgName+"',"+imgTimer+")",imgTimer);
}

// count a hit on the clip
function onClipDone(clip){
if (!clip) return;
// alert("Finished playing: "+clip.fileName.substr(18));
	if (http_request = getHttpObject()){
    	var url = get_root()+"jcms/return.php?mediaplay="+clip.fileName.substr(18);
        http_request.open("GET", url, true);
        http_request.send(null);	   
	}
}

function editPage(page,event){
    if (event.shiftKey==1){
        window.location.href=get_root()+"jcms/?page="+page;
    }
}

// function fallingSnow(){
// // CREDITS:
// // Snowmaker Copyright (c) 2003 Peter Gehrig. All rights reserved.
// // Distributed by http://www.hypergurl.com
// // Permission given to use the script provided that this notice remains as is.
// 
// // Set the number of snowflakes (more than 30 - 40 not recommended)
// var snowmax=35
// 
// // Set the colors for the snow. Add as many colors as you like
// var snowcolor=new Array("#99ffcc","#ccffff","#bbffbb", "#ccffcc", "#99ffff")
// 
// // Set the fonts, that create the snowflakes. Add as many fonts as you like
// var snowtype=new Array("Arial Black","Arial Narrow","Times","Verdana", "Georgia", "Comic Sans MS")
// 
// // Set the letter that creates your snowflake (recommended:*)
// var snowletter="*"
// 
// // Set the speed of sinking (recommended values range from 0.3 to 2)
// var sinkspeed=0.6
// 
// // Set the maximal-size of your snowflaxes
// var snowmaxsize=26
// 
// // Set the minimal-size of your snowflaxes
// var snowminsize=10
// 
// // Set the snowing-zone
// // Set 1 for all-over-snowing, set 2 for left-side-snowing 
// // Set 3 for center-snowing, set 4 for right-side-snowing
// var snowingzone=1
// 
// ///////////////////////////////////////////////////////////////////////////
// // CONFIGURATION ENDS HERE
// ///////////////////////////////////////////////////////////////////////////
// 
// 
// // Do not edit below this line
// var snow=new Array()
// var marginbottom
// var marginright
// var timer
// var i_snow=0
// var x_mv=new Array();
// var crds=new Array();
// var lftrght=new Array();
// var browserinfos=navigator.userAgent 
// var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/)
// var ns6=document.getElementById&&!document.all
// var opera=browserinfos.match(/Opera/)  
// var browserok=ie5||ns6||opera
// 
// function randommaker(range) {		
// 	rand=Math.floor(range*Math.random())
//     return rand
// }
// 
// function initsnow() {
// 	if (ie5 || opera) {
// 		marginbottom = document.body.clientHeight
// 		marginright = document.body.clientWidth
// 	}
// 	else if (ns6) {
// 		marginbottom = window.innerHeight
// 		marginright = window.innerWidth
// 	}
// 	var snowsizerange=snowmaxsize-snowminsize
// 	for (i=0;i<=snowmax;i++) {
// 		crds[i] = 0;                      
//     	lftrght[i] = Math.random()*15;         
//     	x_mv[i] = 0.03 + Math.random()/10;
// 		snow[i]=document.getElementById("s"+i)
// 		snow[i].style.fontFamily=snowtype[randommaker(snowtype.length)]
// 		snow[i].size=randommaker(snowsizerange)+snowminsize
// 		snow[i].style.fontSize=snow[i].size
// 		snow[i].style.color=snowcolor[randommaker(snowcolor.length)]
// 		snow[i].sink=sinkspeed*snow[i].size/5
// 		if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
// 		if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
// 		if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
// 		if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}
// 		snow[i].posy=randommaker(2*marginbottom-marginbottom-2*snow[i].size)
// 		snow[i].style.left=snow[i].posx
// 		snow[i].style.top=snow[i].posy
// 	}
// 	movesnow()
// }
// 
// function movesnow() {
// 	
// 	for (i=0;i<=snowmax;i++) {
// 		crds[i] += x_mv[i];
// 		snow[i].posy+=snow[i].sink
// 		snow[i].style.left=snow[i].posx+lftrght[i]*Math.sin(crds[i]);
// 		snow[i].style.top=snow[i].posy
// 		
// 		if (snow[i].posy>=marginbottom-2*snow[i].size || parseInt(snow[i].style.left)>(marginright-3*lftrght[i])){
// 			if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
// 			if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
// 			if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
// 			if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}
// 			snow[i].posy=0
// 		}
// 	}
// 	var timer=setTimeout("movesnow()",50)
// }
// 
// for (i=0;i<=snowmax;i++) {
// 	document.write("<span id='s"+i+"' style='position:absolute;top:-"+snowmaxsize+"'>"+snowletter+"</span>")
// }
// if (browserok) {
// 	window.onload=initsnow
// }
// }