var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : dd/mm/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}

function emailCheck(emailStr)
{
	var emailPat = /^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,3})$/;
	var matchArray = emailStr.match(emailPat);
	if (matchArray == null)
	{
		return false;
	}
	return true;
}

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) { //v4.01
  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 trim(inputString) {
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") {
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { 
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { 
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length);
   }
   return retValue;
}

function submitLogin()
	{
		var frm = document.frmlogin;
		if (trim(frm.login.value) == '') 
		{
			alert("Please, enter Username");
			frm.login.focus();
			return;
		}
		if (trim(frm.pwd.value) == '') 
		{
			alert("Please, enter Password");
			frm.pwd.focus();
			return;
		}
		frm.submit()
	}

function onSubmitDocs()
	{
		var frm = document.frmsubmit;
		var opt = frm.documentcategory.selectedIndex;
		var filename = trim(frm.attach1.value.toLowerCase()); 
		frm.action = "SubmitDocsAction.asp?documentcategory=" + frm.documentcategory.options[opt].value;
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter title of the document");
			frm.title.focus();
			return false;
		}
		if (filename == '') 
		{
			alert("Please, press the browse button and select a file");
			frm.attach1.focus();
			return false;
		}
		if((filename.lastIndexOf(".doc")==-1) && (filename.lastIndexOf(".pdf")==-1) && (filename.lastIndexOf(".rtf")==-1) && (filename.lastIndexOf(".txt")==-1) && (filename.lastIndexOf(".ppt")==-1) && (filename.lastIndexOf(".xls")==-1) && (filename.lastIndexOf(".zip")==-1) && (filename.lastIndexOf(".jpg")==-1) && (filename.lastIndexOf(".gif")==-1))
		{
			alert("You can upload only DOC, PDF, RTF, TXT, PPT, XLS, ZIP, JPG, GIF extension files")
			frm.attach1.focus();
			return false;
		}
		return true;
	}

function onSubmitPres()
	{
		var frm = document.frmsubmit;
		var opt = frm.meeting.selectedIndex;
		var filename = trim(frm.attach1.value.toLowerCase()); 		
		frm.action = "SubmitPresAction.asp?meeting=" + frm.meeting.options[opt].value;
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter title of the presentation");
			frm.title.focus();
			return false;
		}
		if (filename == '') 
		{
			alert("Please, press the browse button and select a file");
			frm.attach1.focus();
			return false;
		}
		if((filename.lastIndexOf(".doc")==-1) && (filename.lastIndexOf(".pdf")==-1) && (filename.lastIndexOf(".rtf")==-1) && (filename.lastIndexOf(".ppt")==-1) && (filename.lastIndexOf(".xls")==-1) && (filename.lastIndexOf(".zip")==-1))
		{
			alert("You can upload only DOC, PDF, RTF, PPT, XLS, ZIP extension files")
			frm.attach1.focus();
			return false;
		}
		return true;
	}

function onSubmitMeeting(actiontype)
	{
		var frm = document.frmsubmit;
		switch(actiontype){
		case "insert":
			frm.action = "SubmitMeeting.asp"
			break
		case "edit":
			frm.action = "EditMeetingAction.asp?id=" + frm.id.value
			break
		}
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter Title");
			frm.title.focus();
			return false;
		}
		if (trim(frm.location.value) == '') 
		{
			alert("Please, enter Location");
			frm.location.focus();
			return false;
		}
		if (trim(frm.startingdate.value) == '') 
		{
			alert("Please, enter Starting date");
			frm.startingdate.focus();
			return false;
		}
		if (isDate(trim(frm.startingdate.value))==false){
			frm.startingdate.focus();
			return false;
		}		
		if (trim(frm.finishingdate.value) == '') 
		{
			alert("Please, enter Finishing date");
			frm.finishingdate.focus();
			return false;
		}
		if (isDate(trim(frm.finishingdate.value))==false){
			frm.finishingdate.focus();
			return false;
		}				
	
		var exists = eval(document.frmsubmit["attach1"]);	
		if(exists) {
			var filename1 = trim(frm.attach1.value.toLowerCase()); 
			if (filename1 != '') {
				if((filename1.lastIndexOf(".doc")==-1) && (filename1.lastIndexOf(".pdf")==-1) && (filename1.lastIndexOf(".rtf")==-1) && (filename1.lastIndexOf(".txt")==-1) && (filename1.lastIndexOf(".ppt")==-1) && (filename1.lastIndexOf(".xls")==-1) && (filename1.lastIndexOf(".zip")==-1))
				{
					alert("You can upload only DOC, PDF, RTF, TXT, PPT, XLS, ZIP extension files")
					frm.attach1.focus();
					return false;
				}
			}
		}
	
		var exists = eval(document.frmsubmit["attach2"]);	
		if(exists) {	
			var filename2 = trim(frm.attach2.value.toLowerCase()); 
			if (filename2 != '') {
				if((filename2.lastIndexOf(".doc")==-1) && (filename2.lastIndexOf(".pdf")==-1) && (filename2.lastIndexOf(".rtf")==-1) && (filename2.lastIndexOf(".txt")==-1) && (filename2.lastIndexOf(".ppt")==-1) && (filename2.lastIndexOf(".xls")==-1) && (filename2.lastIndexOf(".zip")==-1))
				{
					alert("You can upload only DOC, PDF, RTF, TXT, PPT, XLS, ZIP extension files")
					frm.attach2.focus();
					return false;
				}			
			}
		}
		
		var exists = eval(document.frmsubmit["attach3"]);	
		if(exists) {			
			var filename3 = trim(frm.attach3.value.toLowerCase()); 
			if (filename3 != '') {
				if((filename3.lastIndexOf(".gif")==-1) && (filename3.lastIndexOf(".jpg")==-1))
				{
					alert("You can upload only GIF, JPG extension files")
					frm.attach3.focus();
					return false;
				}			
			}
		}
		
		var exists = eval(document.frmsubmit["attach4"]);	
		if(exists) {					
			var filename4 = trim(frm.attach4.value.toLowerCase()); 
			if (filename4 != '') {
				if((filename4.lastIndexOf(".gif")==-1) && (filename4.lastIndexOf(".jpg")==-1))
				{
					alert("You can upload only GIF, JPG extension files")
					frm.attach4.focus();
					return false;
				}			
			}
		}
		
		var exists = eval(document.frmsubmit["attach5"]);	
		if(exists) {							
			var filename5 = trim(frm.attach5.value.toLowerCase()); 
			if (filename5 != '') {
				if((filename5.lastIndexOf(".gif")==-1) && (filename5.lastIndexOf(".jpg")==-1))
				{
					alert("You can upload only GIF, JPG extension files")
					frm.attach5.focus();
					return false;
				}			
			}
		}
		
		var exists = eval(document.frmsubmit["attach6"]);	
		if(exists) {			
			var filename6 = trim(frm.attach6.value.toLowerCase()); 
			if (filename6 != '') {
				if((filename6.lastIndexOf(".gif")==-1) && (filename6.lastIndexOf(".jpg")==-1))
				{
					alert("You can upload only GIF, JPG extension files")
					frm.attach6.focus();
					return false;
				}			
			}
		}
		
		var exists = eval(document.frmsubmit["attach7"]);	
		if(exists) {			
			var filename7 = trim(frm.attach7.value.toLowerCase()); 
			if (filename7 != '') {
				if((filename7.lastIndexOf(".gif")==-1) && (filename7.lastIndexOf(".jpg")==-1))
				{
					alert("You can upload only GIF, JPG extension files")
					frm.attach7.focus();
					return false;
				}			
			}
		}

		var exists = eval(document.frmsubmit["attach8"]);	
		if(exists) {			
			var filename8 = trim(frm.attach8.value.toLowerCase()); 
			if (filename8 != '') {
				if((filename8.lastIndexOf(".gif")==-1) && (filename8.lastIndexOf(".jpg")==-1))
				{
					alert("You can upload only GIF, JPG extension files")
					frm.attach8.focus();
					return false;
				}			
			}
		}

		return true;
	}

function onSubmitEventWatch(actiontype)
	{
		var frm = document.frmsubmit;
		switch(actiontype){
		case "insert":
			frm.action = "InsertEventWatch.asp"
			break
		case "edit":
			frm.action = "EditEventWatch.asp"
			break
		}
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter Title of the event");
			frm.title.focus();
			return false;
		}
		if (trim(frm.location.value) == '') 
		{
			alert("Please, enter Location of the event");
			frm.location.focus();
			return false;
		}
		if (trim(frm.startingdate.value) != '')
		{
			if (isDate(trim(frm.startingdate.value))==false){
				frm.startingdate.focus();
				return false;
			}
		}
		if (trim(frm.finishingdate.value) != '')
		{
			if (isDate(trim(frm.finishingdate.value))==false){
				frm.finishingdate.focus();
				return false;
			}
		}
		if (trim(frm.email.value) != '')
		{
			if (emailCheck(trim(frm.email.value))==false){
				alert("Please, enter valid email");				
				frm.email.focus();
				return false;
			}
		}		
	return true;
	}

function onSubmitLiteratureWatch(actiontype)
	{
		var frm = document.frmsubmit;
		switch(actiontype){
		case "insert":
			frm.action = "InsertLiteratureWatch.asp"
			break
		case "edit":
			frm.action = "EditLiteratureWatch.asp"
			break
		}
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter Title");
			frm.title.focus();
			return false;
		}
	return true;
	}

function onSubmitOnlineWatch(actiontype)
	{
		var frm = document.frmsubmit;
		switch(actiontype){
		case "insert":
			frm.action = "InsertOnlineWatch.asp"
			break
		case "edit":
			frm.action = "EditOnlineWatch.asp"
			break
		}
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter Title");
			frm.title.focus();
			return false;
		}
		if ((trim(frm.url.value) == '') || (trim(frm.url.value) == 'http://'))
		{
			alert("Please, enter Url");
			frm.url.focus();
			return false;
		}				
		if (trim(frm.email.value) != '')
		{
			if (emailCheck(trim(frm.email.value))==false){
				alert("Please, enter valid email");				
				frm.email.focus();
				return false;
			}
		}					
	return true;
	}

function onSubmitLink(actiontype)
	{
		var frm = document.frmsubmit;
		switch(actiontype){
		case "insert":
			frm.action = "InsertLink.asp"
			break
		case "edit":
			frm.action = "EditLink.asp"
			break
		}
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter Title");
			frm.title.focus();
			return false;
		}		
		if ((trim(frm.linkscategory.value) == '0') || (frm.linkscategory.selectedIndex < 0))
		{
			alert("Please, select Category");
			frm.linkscategory.focus();
			return false;
		}	
		if ((trim(frm.url.value) == '') || (trim(frm.url.value) == 'http://'))
		{
			alert("Please, enter Url");
			frm.url.focus();
			return false;
		}				
		return true;
	}

function editData(type,id)
{
	var frm = document.frmedit;
	switch(type){
		case "ewt":
			frm.action = "EditEventWatch.asp";
			break
		case "lwt":
			frm.action = "EditLiteratureWatch.asp";
			break
		case "wwt":
			frm.action = "EditOnlineWatch.asp";
			break
		case "meet":
			frm.action = "EditMeeting.asp";
			break
		case "news":
			frm.action = "EditNews.asp";
			break
		case "lnk":
			frm.action = "EditLink.asp";
			break
		}
	frm.id.value = id;
	frm.submit();
}

function deleteData(type,id)
{	
	var frm = document.frmdelete;
	frm.type.value = type;
	frm.id.value = id;
	msg = 'Are you sure you want to permanently delete this item?'
	if(type == 'meet') {
		msg =  msg + '\n' + 'All submitted presentations and documents will be lost!'
	}
	if (confirm(msg))
   {
		frm.submit();
   }           
}

function deleteMeetingFile(type,id)
{
	var frm = document.frmdeletefile;
	frm.filetype.value = type;
	frm.meetid.value = id;
	msg = 'Are you sure you want to permanently delete this file?'	
	if (confirm(msg))
   {
		frm.submit();
   }           
}

function deleteNewsFile(type,id)
{
	var frm = document.frmdeletefile;
	frm.filetype.value = type;
	frm.newsid.value = id;
	msg = 'Are you sure you want to permanently delete this file?'	
	if (confirm(msg))
   {
		frm.submit();
   }           
}

function underConstruction()
	{

		alert("Under construction");
		return;

	}

function doPic(imgName, w, h)
{
	var p;
	p = "toolbar=0,location=0,status=0,menubar=0,scrollbars=0,resizable=0,width=" + w + ",height=" + h
	window.open(imgName, "ImageWindow",p);
}

function onSubmitNews(actiontype)
	{
		var frm = document.frmsubmit;
		switch(actiontype){
		case "insert":
			frm.action = "SubmitNews.asp"
			break
		case "edit":
			frm.action = "EditNewsAction.asp?id=" + frm.id.value
			break
		}
		if (trim(frm.title.value) == '') 
		{
			alert("Please, enter Title");
			frm.title.focus();
			return false;
		}
		document.getElementById('editor1').EscapeUnicode = true; 
		document.getElementById('xhtml1').value = document.getElementById('editor1').value; 
		
		var exists = eval(document.frmsubmit["attach1"]);	
		if(exists) {
			var filename1 = trim(frm.attach1.value.toLowerCase()); 
			if (filename1 != '') {
				if((filename1.lastIndexOf(".doc")==-1) && (filename1.lastIndexOf(".pdf")==-1) && (filename1.lastIndexOf(".rtf")==-1) && (filename1.lastIndexOf(".txt")==-1) && (filename1.lastIndexOf(".ppt")==-1) && (filename1.lastIndexOf(".xls")==-1) && (filename1.lastIndexOf(".zip")==-1) && (filename1.lastIndexOf(".jpg")==-1) && (filename1.lastIndexOf(".gif")==-1))
				{
					alert("You can upload only DOC, PDF, RTF, TXT, PPT, XLS, ZIP, JPG, GIF extension files")
					frm.attach1.focus();
					return false;
				} else {
					if (trim(frm.attach1_title.value) == '') 
					{
						alert("Please, enter Title of Attach1");
						frm.attach1_title.focus();
						return false;
					}
	
				}
			}
		}
		var exists = eval(document.frmsubmit["attach1_file"]);	
		if(exists) {
					if (trim(frm.attach1_title.value) == '') 
					{
						alert("Please, enter Title of Attach1");
						frm.attach1_title.focus();
						return false;
					}
		}
		
		var exists = eval(document.frmsubmit["attach2"]);	
		if(exists) {
			var filename2 = trim(frm.attach2.value.toLowerCase()); 
			if (filename2 != '') {
				if((filename2.lastIndexOf(".doc")==-1) && (filename2.lastIndexOf(".pdf")==-1) && (filename2.lastIndexOf(".rtf")==-1) && (filename2.lastIndexOf(".txt")==-1) && (filename2.lastIndexOf(".ppt")==-1) && (filename2.lastIndexOf(".xls")==-1) && (filename2.lastIndexOf(".zip")==-1) && (filename2.lastIndexOf(".jpg")==-1) && (filename2.lastIndexOf(".gif")==-1))
				{
					alert("You can upload only DOC, PDF, RTF, TXT, PPT, XLS, ZIP, JPG, GIF extension files")
					frm.attach2.focus();
					return false;
				} else {
					if (trim(frm.attach2_title.value) == '') 
					{
						alert("Please, enter Title of Attach2");
						frm.attach2_title.focus();
						return false;
					}
				}			
			}
		}
		var exists = eval(document.frmsubmit["attach2_file"]);	
		if(exists) {
					if (trim(frm.attach2_title.value) == '') 
					{
						alert("Please, enter Title of Attach2");
						frm.attach2_title.focus();
						return false;
					}
		}
		
		var exists = eval(document.frmsubmit["attach3"]);	
		if(exists) {
			var filename3 = trim(frm.attach3.value.toLowerCase()); 
			if (filename3 != '') {
				if((filename3.lastIndexOf(".doc")==-1) && (filename3.lastIndexOf(".pdf")==-1) && (filename3.lastIndexOf(".rtf")==-1) && (filename3.lastIndexOf(".txt")==-1) && (filename3.lastIndexOf(".ppt")==-1) && (filename3.lastIndexOf(".xls")==-1) && (filename3.lastIndexOf(".zip")==-1) && (filename3.lastIndexOf(".jpg")==-1) && (filename3.lastIndexOf(".gif")==-1))
				{
					alert("You can upload only DOC, PDF, RTF, TXT, PPT, XLS, ZIP, JPG, GIF extension files")
					frm.attach3.focus();
					return false;
				} else {
					if (trim(frm.attach3_title.value) == '') 
					{
						alert("Please, enter Title of Attach3");
						frm.attach3_title.focus();
						return false;
					}
				}
			
			}
		}		
		var exists = eval(document.frmsubmit["attach3_file"]);	
		if(exists) {
					if (trim(frm.attach3_title.value) == '') 
					{
						alert("Please, enter Title of Attach3");
						frm.attach3_title.focus();
						return false;
					}
		}
		
		if (trim(frm.dateofentry.value) == '') 
		{
			alert("Please, enter Date of publishing");
			frm.dateofentry.focus();
			return false;
		}
		if (isDate(trim(frm.dateofentry.value))==false){
			frm.dateofentry.focus();
			return false;
		}		
		return true;
	}