var tempDate;
var article_date;
var msg_art = "Invalid Article Date!";
var msg_start = "Invalid Start Date!";
var msg_expire = "Invalid Expire Date!";
var msg_seq = "Start Date should be earlier than Expire Date!";

function checklength(arg) {
	ok = false;
	for (i=0; i < arg.length; i++){
		if (isNaN(arg.charAt(i)) || (arg.charAt(i)==" ")){						
			return true;
		}else{
			ok = false;
		}
	}
	return ok;
}

function getDate(date,bool){
	var symbol = "/";
	for (i=0; i<date.length; i++){	
		ch = date.substring(i,i+1);
		if ((ch == symbol) && (bool)){
			article_date = article_date.substring(i+1,date.length);
			return date.substring(0,i);
		}else if (!bool){
			return date.substring(0,date.length);
		}
	}
}

function getInv(date,bool,sym){
	for (i=0; i<date.length; i++){	
		ch = date.substring(i,i+1);
		if ((ch == sym) && (bool)){
			tempDate = tempDate.substring(i+1,date.length);
			return date.substring(0,i);
		}else if (!bool){
			return date.substring(0,date.length);
		}
	}
}

function checkDate(strday, strmonth, stryear){
	var dateOK = true;
	if (stryear.length > 0)	{
	 	if ((strday == 31) && (strmonth == 2 || strmonth == 4 || strmonth == 6 || strmonth == 9 || strmonth == 11)){
  			dateOK = false;
	 	}
 		if ((strday == 30) && (strmonth == 2)){
  			 dateOK = false;
	  	}
  		if ((strday == 29) && (strmonth == 2) && (stryear % 4 != 0)){
  			 dateOK = false;
	 	} 	
	}
 	return dateOK;
}

function checkDate2(day1,month1,year1,day2,month2,year2){
	var date1;
        var date2;
	date1 = year1 * 10000 + month1 * 100 + day1;
       	date2 = year2 * 10000 + month2 * 100 + day2;
	return date1 <= date2;
}

function checkAllDate(arg){
	var date_y,date_m,date_d;
	article_date = arg;
	if (article_date.length==0){
		return true;
	}
	date_d = getDate(article_date,true);	
	date_m = getDate(article_date,true);
	date_y = getDate(article_date,false);
	if (!(date_y.length==4)){
		return true;
	}
	if ((date_m < 1) || (date_m > 12)){
		return true;
	}
	if ((date_d < 1) || (date_d > 31)){
		return true;
	}
	if (checklength(date_y) || checklength(date_m) || checklength(date_d)){
		return true;
	}
	if(!checkDate(date_d, date_m, date_y)){		
		return true;
	}
	return false;
}

function MM_controlShockwave(objStr,x,cmdName,frameNum) { //v3.0
  var obj=MM_findObj(objStr);
  if (obj) eval('obj.'+cmdName+'('+((cmdName=='GotoFrame')?frameNum:'')+')');
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function moveDivs(layerObj, inObj){
	layerObj.top  = inObj;
} 

function moveTopDivs(layerObj, inObjTop, inObjLeft){
	layerObj.top  = inObjTop;
	layerObj.left  = inObjLeft;
} 

function getDim(el){
	for (var lx=0,ly=0;el!=null;
		lx+=el.offsetLeft,ly+=el.offsetTop,el=el.offsetParent);
	return {x:lx,y:ly}
}

function MM_showHideLayers() { //v3.0
	var i,p,v,obj,args=MM_showHideLayers.arguments;
	var k;
	y=19;
	isNS4 = (document.layers) ? true : false;
	isIE4 = (document.all && !document.getElementById) ? true : false;
	isIE5 = (document.all && document.getElementById) ? true : false;
	isNS6 = (!document.all && document.getElementById) ? true : false;
	for (i=0, k=1; i<(args.length-3); i+=3, k+=1) {
    	if ((obj=MM_findObj(args[i]))!=null) { 
			v=args[i+2];
			if (obj.style) { obj=obj.style; }
			if (v=='show') {
				if(args[4]==1){
					addHeight=30;
					addWidth=-10;
				}else{
					addHeight=-4;
					addWidth=-14;
				}
			
				if (!document.layers) {   // all others
					if (isNS6) {
//						w = window.innerWidth;
						eval('moveTopDivs(document.getElementById("'+args[0]+'").style, document.images["MenuPos'+args[3]+'_'+args[4]+'"].y + '+addHeight+', document.images["MenuPos'+args[3]+'_'+args[4]+'"].x + document.images["MenuPos'+args[3]+'_'+args[4]+'"].width + '+addWidth+')');
					}else {
//						w = window.document.body.clientWidth;
						eval('moveTopDivs(document.all["'+args[0]+'"].style, getDim(document.images.MenuPos'+args[3]+'_'+args[4]+').y + '+addHeight+', getDim(document.images.MenuPos'+args[3]+'_'+args[4]+').x+ document.images["MenuPos'+args[3]+'_'+args[4]+'"].width + '+addWidth+')');
					}
				}else {  //NN4
					eval('moveTopDivs(document.layers["'+args[0]+'"], document.images["MenuPos'+args[3]+'_'+args[4]+'"].y + '+addHeight+', document.images["MenuPos'+args[3]+'_'+args[4]+'"].x + document.images["MenuPos'+args[3]+'_'+args[4]+'"].width + '+addWidth+')');
				}		
			}
			v=(v=='show')?'visible':(v='hide')?'hidden':v; 
			obj.visibility=v; 
		}
	}
}

function changePullDown(num){
	if(content.location.hash!=""){
		var contentLocation = parent.content.location.toString().replace(content.location.hash, "");
	}else{
		var contentLocation = parent.content.location;
	}
	parent.content.location = contentLocation + '#' + num;
}

function openUploadWindow(Url){
	var d = new Date();
	wName = d.getYear().toString()+d.getMonth().toString()+d.getDate().toString()+d.getHours().toString()+d.getMinutes().toString()+d.getSeconds().toString();
	window.open (Url, wName, 'height=600, width=750, top=0, left=0, toolbar=no, menubar=no, scrollbars=yes, resizable=yes,location=no, status=no')
}

function openUploadWindow2(Url){
	var d = new Date();
	wName = d.getYear().toString()+d.getMonth().toString()+d.getDate().toString()+d.getHours().toString()+d.getMinutes().toString()+d.getSeconds().toString();
	window.open (Url, wName, 'height=600, width=900, top=0, left=0, toolbar=no, menubar=no, scrollbars=yes, resizable=yes,location=no, status=no')
}

function setImageList(ImgNum){
	resetImgBorder();
	if(document.getElementById("list_1")){
		document.getElementById("list_1").border = 2;
	}else{
		document.list_1.border = 2;
	}

	document.showImg.src = imageFile[ImgNum][2];

	for(i=1;i<=5;i++){
		num = ImgNum+(i-1);
		if(imageFile.length > num){
			eval('document.list_'+i+'.src = imageFile['+num+'][1];');
		}else{
			eval('document.list_'+i+'.src = "images/blank_photo.gif"');
			eval('document.list_'+i+'.width = 80');
		}
	}
	
	tmp = imageFile.length%5;
	PageNum = parseInt(imageFile.length/5);
	if(tmp!=0){
		PageNum++;
	}

	for(i=1;i<=PageNum;i++){
		if(document.getElementById('ImgList'+i)){
			changeClass('ImgList'+i, 'content_black_link');
		}
	}
	changeClass('ImgList'+(parseInt(ImgNum/5)+1), 'content_blue_link');
}

function changeClass(Elem, myClass) {
	var elem;
	if(document.getElementById) {
		var elem = document.getElementById(Elem);
	} else if (document.all){
		var elem = document.all[Elem];
	}
	elem.className = myClass;
}

function simg(obj,list,num){
	if( list.src.toString().substring(list.src.toString().lastIndexOf("/")+1, list.src.length) != 'blank_photo.gif' ){
		var ImageFile = list.src.toString().substring(list.src.toString().indexOf("filemanager/"), list.src.length);
	
		for(i=1;i<=imageFile.length-1;i++){
			if(imageFile[i][1]==ImageFile){
				newImage = imageFile[i][2];
			}
		}
		
		resetImgBorder();
		if( document.getElementById("list_"+num) ){
			document.getElementById("list_"+num).border = 2;
		}else{
			eval("document.list_"+num+".border = 2;");
		}
	
		obj.src = newImage; 
	}
}

function checkCurrentImg(){
	var ImageFile = showImg.src.toString().substring(showImg.src.toString().indexOf("filemanager/"), showImg.src.length);
	
	for(i=1;i<=imageFile.length-1;i++){
		if(imageFile[i][2]==ImageFile){
			return i;
		}
	}
}

function showNext(){
	var ImageNum = checkCurrentImg();
	if(imageFile.length-1 > ImageNum){
		if(ImageNum%5==0){
			setImageList(parseInt(ImageNum)+1);
		}else{
			resetImgBorder();
			document.showImg.src = imageFile[ImageNum+1][2];
			if( document.getElementById("list_"+(parseInt(ImageNum%5)+1)) ){
				document.getElementById("list_"+(parseInt(ImageNum%5)+1)).border = 2;
			}else{
				eval("document.list_"+(parseInt(ImageNum%5)+1)+".border = 2;");
			}
		}
	}
}

function showPrev(){
	var ImageNum = checkCurrentImg();
	if(ImageNum != 1){
		if((parseInt(ImageNum)-1)%5==0){
			setImageList(parseInt(ImageNum)-5);
		}else{
			resetImgBorder();
			if(ImageNum%5!=0){
				if( document.getElementById("list_"+(parseInt(ImageNum%5)-1)) ){
					document.getElementById("list_"+(parseInt(ImageNum%5)-1)).border = 2;
				}else{
					eval("document.list_"+(parseInt(ImageNum%5)-1)+".border = 2;");
				}
			}else{
				if( document.getElementById("list_4") ){
					document.getElementById("list_4").border = 2;
				}else{
					document.list_4.border = 2;
				}
			}
			document.showImg.src = imageFile[ImageNum-1][2];
		}
	}
}

function loadorder() {
	window.scrollTo(0,0);
}

function resetImgBorder(){
	for(i=1;i<=5;i++){
		if( document.getElementById("list_"+i) ){
			document.getElementById("list_"+i).border = 0;
		}else{
			eval("document.list_"+i+".border = 0;");
		}
	}
}

function changeLang(lang){
	if(lang=='en'){
		document.frm01.lang.value = 'en-us';
	}else{
		document.frm01.lang.value = 'utf-8';
	}
	document.frm01.submit();
}

function Login(){
	document.location = 'http://www.naturalsense.com.hk/Website/index.php?lang=en-us&nodeID=190';
}

function checkName(form_value) 
{
  var validDigit = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_.";
  var formOK = true;
  var temp;	

  for (var i=0; i<form_value.length; i++) 
  {
    temp = "" + form_value.substring(i, i+1);
    if (validDigit.indexOf(temp) == "-1") formOK = false;
  }
  return formOK;
}

function checkLength(form_value)
{
  var formOK = true;

  if (form_value.length==0)		
  {
	formOK = false;
  }	
	
  return formOK;
}

function checkMail(form_value)
{
	pos1 = form_value.indexOf("@");
	pos2 = form_value.indexOf(".",pos1);	
	if (form_value.indexOf("@") == -1 || form_value.indexOf(".") == -1 || form_value.indexOf(" ") != -1 || pos2==-1)
	{
		return false;
	}
	return true;
}

function changeNsPage(lang, nodeId){
	document.location = 'index.php?lang='+lang+'&nodeID='+nodeId;
}