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

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_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_findObj(n, d) { //v4.01
  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 && d.getElementById) x=d.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 getPageName(url){
	var pageName = url.substring(url.lastIndexOf("/")+1, url.length);
	document.all.pageURL.value = pageName;
}

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') {
				addHeight=60 - ( ( parseInt(args[4]) - 1 ) * 15 );
				addWidth=0;
				if (!document.layers) {   // all others
					if (isNS6) {
						eval('layerWidth = ( parseInt(document.getElementById("'+args[0]+'").style.width) - document.images["'+args[3]+'"].width ) / 2 ');
						eval('layerLocation = getDim(document.images.'+args[3]+').x - layerWidth');
//						w = window.innerWidth;
						eval('moveTopDivs(document.getElementById("'+args[0]+'").style, document.images["'+args[3]+'"].y + '+addHeight+', layerLocation)');
					}else {
						eval('layerWidth = ( parseInt(document.all["'+args[0]+'"].style.width) - document.images["'+args[3]+'"].width ) / 2 ');
						eval('layerLocation = getDim(document.images.'+args[3]+').x - layerWidth');
//						w = window.document.body.clientWidth;
						eval('moveTopDivs(document.all["'+args[0]+'"].style, getDim(document.images.'+args[3]+').y + '+addHeight+', layerLocation)');
					}
				}else {  //NN4
					eval('moveTopDivs(document.layers["'+args[0]+'"], document.images["'+args[3]+'"].y + '+addHeight+', document.images["'+args[3]+'"].x + document.images["'+args[3]+'"].width + '+addWidth+')');
				}		
			}
			v=(v=='show')?'visible':(v='hide')?'hidden':v; 
			obj.visibility=v; 
		}
	}
}

function getMonth(num){
	switch(num){
		case 1:
			return "January";
			break;
		case 2:
			return "February";
			break;
		case 3:
			return "March";
			break;
		case 4:
			return "April";
			break;
		case 5:
			return "May";
			break;
		case 6:
			return "June";
			break;
		case 7:
			return "July";
			break;
		case 8:
			return "August";
			break;
		case 9:
			return "September";
			break;
		case 10:
			return "October";
			break;
		case 11:
			return "November";
			break;
		case 12:
			return "December";
			break;
		default:
			return "Error";
	}
}

function getMonth2(num){
	switch(num){
		case 1:
			return "Jan";
			break;
		case 2:
			return "Feb";
			break;
		case 3:
			return "Mar";
			break;
		case 4:
			return "Apr";
			break;
		case 5:
			return "May";
			break;
		case 6:
			return "Jun";
			break;
		case 7:
			return "Jul";
			break;
		case 8:
			return "Aug";
			break;
		case 9:
			return "Sep";
			break;
		case 10:
			return "Oct";
			break;
		case 11:
			return "Nov";
			break;
		case 12:
			return "Dec";
			break;
		default:
			return "Error";
	}
}

function getWeek(num){
	switch(num){
		case 1:
			return "Monday";
			break;
		case 2:
			return "Tuesday";
			break;
		case 3:
			return "Wendnesday";
			break;
		case 4:
			return "Thursday";
			break;
		case 5:
			return "Friday";
			break;
		case 6:
			return "Saturday";
			break;
		case 0:
			return "Sunday";
			break;
		default:
			return "Error";
	}
}

function changeCalendarMonth(num){
	if(num>12){
		document.calendarFrm.calYear.value = parseInt(document.calendarFrm.calYear.value) + 1;
		document.calendarFrm.calMonth.value = 1;
	}else if(num==0){
		document.calendarFrm.calYear.value = parseInt(document.calendarFrm.calYear.value) - 1;
		document.calendarFrm.calMonth.value = 12;
	}else{
		document.calendarFrm.calMonth.value = num;
	}
	
	document.calendarFrm.showYear.value = document.calendarFrm.calYear.value;
	document.calendarFrm.showMonth.value = document.calendarFrm.calMonth.value;
	document.calendarFrm.action = document.calendarFrm.action.substring(document.calendarFrm.action.lastIndexOf("/")+1, document.calendarFrm.action.lenght);
	document.calendarFrm.submit();
}

function showEvent(mon, year){
	document.calendarFrm.showYear.value = year;
	document.calendarFrm.showMonth.value = mon;
	document.calendarFrm.action = 'events_camp.php';
	document.calendarFrm.submit();
}

function openNewWindow(page, x, y){
	window.open(page,'showCV','width='+x+',height='+y+', scrollbars=yes');
}

function limitText(limitField, limitNum, Msg) {
	space = limitField.value.split(" ");
	if(space.length > limitNum){
		alert(Msg+" should not more than "+limitNum+" words");
		storeValue = "";
		for(i=0;i<=(limitNum-1);i++){
			if(i!=(limitNum-1)){ storeValue += space[i]+" "; }else{ storeValue += space[i]; }
		}
		limitField.value = storeValue;
		return false;
	}
	return true;
}