//Check navigator or browser

//Check navigator or browser
var isNav = false;
var isIE = false;
var isNav4 = false;
var isIE4 = false;
var is5up = false;
var isFireFox= false;
var isSafari= false;
var isOpera = false;
var isMac = false;
var isWin = false;

var AGENTS = ["opera","msie","safari","firefox","netscape","mozilla"];
var agent = navigator.userAgent.toLowerCase();
for (var i = 0; i < AGENTS.length; i++) 
{
	var agentStr = AGENTS[i];
	if (agent.indexOf(agentStr) != -1) 
	{
		var versionExpr = new RegExp(agentStr + "[ \/]?([0-9]+(\.[0-9]+)?)");
		var version = 0;
		if (versionExpr.exec(agent) != null) {version = parseFloat(RegExp.$1);}
		if (agentStr == "opera")
		{
			 isOpera=true;
			 //return version >= 7;
		}
		if (agentStr == "safari") 
		{
			isSafari=true;
			//return version >= 125;
		}
		if (agentStr == "msie") 
		{
			isIE=true;
			isIE4 =  version < 5.5 ;
			is5up =  version < 5.5 ;
		}
		if (agentStr == "netscape") 
		{
			isNav=true;			
			isNav4 = version > 5;
		}
		if (agentStr =="firefox")
		{
			isFireFox=true;
		}
	}
}
	
if (navigator.userAgent.indexOf("Win") >= 0)
	isWin = true;
else
	isMac = true;	
//--------------------------------end Browser Checking---------------------------------	



//------------------------------------TRIM FUNCTION--------------------------------
//For general use in any form  
// Removes leading and trailing spaces from the passed string. Also removes
// consecutive spaces and replaces it with one space. If something besides
// a string is passed in (null, custom object, etc.) then return the input.
function trim(inputString) {

   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} 
//---------------------------------------End of "TRIM" function--------------------



//------------------------------------------Date Functions-------------------------

// These functions use the same 'format' strings as the 
// java.text.SimpleDateFormat class, with minor exceptions.
// The format string consists of the following abbreviations:
// 
// Field        | Full Form          | Short Form
// -------------+--------------------+-----------------------
// Year         | yyyy (4 digits)    | yy (2 digits), y (2 or 4 digits)
// Month        | MMM (name or abbr.)| MM (2 digits), M (1 or 2 digits)
//              | NNN (abbr.)        |
// Day of Month | dd (2 digits)      | d (1 or 2 digits)
// Day of Week  | EE (name)          | E (abbr)
// Hour (1-12)  | hh (2 digits)      | h (1 or 2 digits)
// Hour (0-23)  | HH (2 digits)      | H (1 or 2 digits)
// Hour (0-11)  | KK (2 digits)      | K (1 or 2 digits)
// Hour (1-24)  | kk (2 digits)      | k (1 or 2 digits)
// Minute       | mm (2 digits)      | m (1 or 2 digits)
// Second       | ss (2 digits)      | s (1 or 2 digits)
// AM/PM        | a                  |
//
// NOTE THE DIFFERENCE BETWEEN MM and mm! Month=MM, not mm!
// Examples:
//  "MMM d, y" matches: January 01, 2000
//                      Dec 1, 1900
//                      Nov 20, 00
//  "M/d/yy"   matches: 01/20/00
//                      9/2/00
//  "MMM dd, yyyy hh:mm:ssa" matches: "January 01, 2000 12:30:45AM"
// ------------------------------------------------------------------

var MONTH_NAMES=new Array('January','February','March','April','May','June','July','August','September','October','November','December','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
var DAY_NAMES=new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sun','Mon','Tue','Wed','Thu','Fri','Sat');
function LZ(x) {return(x<0||x>9?"":"0")+x}

// ------------------------------------------------------------------
// isDate ( date_string, format_string )
// Returns true if date string matches format of format string and
// is a valid date. Else returns false.
// It is recommended that you trim whitespace around the value before
// passing it to this function, as whitespace is NOT ignored!
// ------------------------------------------------------------------
function isDate(val,format) {
	var date=getDateFromFormat(val,format);
	if (date==0) { return false; }
	return true;
	}

// -------------------------------------------------------------------
// compareDates(date1,date1format,date2,date2format)
//   Compare two date strings to see which is greater.
//   Returns:
//   1 if date1 is greater than date2
//   0 if date2 is greater than date1 of if they are the same
//  -1 if either of the dates is in an invalid format
// -------------------------------------------------------------------
function compareDates(date1,dateformat1,date2,dateformat2) {
	var d1=getDateFromFormat(date1,dateformat1);
	var d2=getDateFromFormat(date2,dateformat2);
	if (d1==0 || d2==0) {
		return -1;
		}
	else if (d1 > d2) {
		return 1;
		}
	return 0;
	}

// ------------------------------------------------------------------
// formatDate (date_object, format)
// Returns a date in the output format specified.
// The format string uses the same abbreviations as in getDateFromFormat()
// ------------------------------------------------------------------
function formatDate(date,format) {
	format=format+"";
	var result="";
	var i_format=0;
	var c="";
	var token="";
	var y=date.getYear()+"";
	var M=date.getMonth()+1;
	var d=date.getDate();
	var E=date.getDay();
	var H=date.getHours();
	var m=date.getMinutes();
	var s=date.getSeconds();
	var yyyy,yy,MMM,MM,dd,hh,h,mm,ss,ampm,HH,H,KK,K,kk,k;
	// Convert real date parts into formatted versions
	var value=new Object();
	if (y.length < 4) {y=""+(y-0+1900);}
	value["y"]=""+y;
	value["yyyy"]=y;
	value["yy"]=y.substring(2,4);
	value["M"]=M;
	value["MM"]=LZ(M);
	value["MMM"]=MONTH_NAMES[M-1];
	value["NNN"]=MONTH_NAMES[M+11];
	value["d"]=d;
	value["dd"]=LZ(d);
	value["E"]=DAY_NAMES[E+7];
	value["EE"]=DAY_NAMES[E];
	value["H"]=H;
	value["HH"]=LZ(H);
	if (H==0){value["h"]=12;}
	else if (H>12){value["h"]=H-12;}
	else {value["h"]=H;}
	value["hh"]=LZ(value["h"]);
	if (H>11){value["K"]=H-12;} else {value["K"]=H;}
	value["k"]=H+1;
	value["KK"]=LZ(value["K"]);
	value["kk"]=LZ(value["k"]);
	if (H > 11) { value["ar"]="PM"; }
	else { value["ar"]="AM"; }
	value["m"]=m;
	value["mm"]=LZ(m);
	value["s"]=s;
	value["ss"]=LZ(s);
	while (i_format < format.length) {
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		if (value[token] != null) { result=result + value[token]; }
		else { result=result + token; }
		}
	return result;
	}
	
// ------------------------------------------------------------------
// Utility functions for parsing in getDateFromFormat()
// ------------------------------------------------------------------
function _isInteger(val) {
	var digits="1234567890";
	for (var i=0; i < val.length; i++) {
		if (digits.indexOf(val.charAt(i))==-1) { return false; }
		}
	return true;
	}
function _isDouble(val) {
	var digits=".1234567890";
	for (var i=0; i < val.length; i++) {
		if (digits.indexOf(val.charAt(i))==-1) { return false; }
		}
	return true;
	}
	
function _isEmpty(val) {
	  var trimmedVal;
	  trimmedVal=trim(val);
	  if (trimmedVal.length>0) return false;
	  else return true;
}

function _getInt(str,i,minlength,maxlength) {
	for (var x=maxlength; x>=minlength; x--) {
		var token=str.substring(i,i+x);
		if (token.length < minlength) { return null; }
		if (_isInteger(token)) { return token; }
		}
	return null;
	}
	
// ------------------------------------------------------------------
// getDateFromFormat( date_string , format_string )
//
// This function takes a date string and a format string. It matches
// If the date string matches the format string, it returns the 
// getTime() of the date. If it does not match, it returns 0.
// ------------------------------------------------------------------
function getDateFromFormat(val,format) {
	val=val+"";
	format=format+"";
	var i_val=0;
	var i_format=0;
	var c="";
	var token="";
	var token2="";
	var x,y;
	var now=new Date();
	var year=now.getYear();
	var month=now.getMonth()+1;
	var date=1;
	var hh=now.getHours();
	var mm=now.getMinutes();
	var ss=now.getSeconds();
	var ampm="";
	
	while (i_format < format.length) {
		// Get next token from format string
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		// Extract contents of value based on format token
		if (token=="yyyy" || token=="yy" || token=="y") {
			if (token=="yyyy") { x=4;y=4; }
			if (token=="yy")   { x=2;y=2; }
			if (token=="y")    { x=2;y=4; }
			year=_getInt(val,i_val,x,y);
			if (year==null) { return 0; }
			i_val += year.length;
			if (year.length==2) {
				if (year > 70) { year=1900+(year-0); }
				else { year=2000+(year-0); }
				}
			}
		else if (token=="MMM"||token=="NNN"){
			month=0;
			for (var i=0; i<MONTH_NAMES.length; i++) {
				var month_name=MONTH_NAMES[i];
				if (val.substring(i_val,i_val+month_name.length).toLowerCase()==month_name.toLowerCase()) {
					if (token=="MMM"||(token=="NNN"&&i>11)) {
						month=i+1;
						if (month>12) { month -= 12; }
						i_val += month_name.length;
						break;
						}
					}
				}
			if ((month < 1)||(month>12)){return 0;}
			}
		else if (token=="EE"||token=="E"){
			for (var i=0; i<DAY_NAMES.length; i++) {
				var day_name=DAY_NAMES[i];
				if (val.substring(i_val,i_val+day_name.length).toLowerCase()==day_name.toLowerCase()) {
					i_val += day_name.length;
					break;
					}
				}
			}
		else if (token=="MM"||token=="M") {
			month=_getInt(val,i_val,token.length,2);
			if(month==null||(month<1)||(month>12)){return 0;}
			i_val+=month.length;}
		else if (token=="dd"||token=="d") {
			date=_getInt(val,i_val,token.length,2);
			if(date==null||(date<1)||(date>31)){return 0;}
			i_val+=date.length;}
		else if (token=="hh"||token=="h") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>12)){return 0;}
			i_val+=hh.length;}
		else if (token=="HH"||token=="H") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>23)){return 0;}
			i_val+=hh.length;}
		else if (token=="KK"||token=="K") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>11)){return 0;}
			i_val+=hh.length;}
		else if (token=="kk"||token=="k") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>24)){return 0;}
			i_val+=hh.length;hh--;}
		else if (token=="mm"||token=="m") {
			mm=_getInt(val,i_val,token.length,2);
			if(mm==null||(mm<0)||(mm>59)){return 0;}
			i_val+=mm.length;}
		else if (token=="ss"||token=="s") {
			ss=_getInt(val,i_val,token.length,2);
			if(ss==null||(ss<0)||(ss>59)){return 0;}
			i_val+=ss.length;}
		else if (token=="ar") {
			if (val.substring(i_val,i_val+2).toLowerCase()=="am") {ampm="AM";}
			else if (val.substring(i_val,i_val+2).toLowerCase()=="pm") {ampm="PM";}
			else {return 0;}
			i_val+=2;}
		else {
			if (val.substring(i_val,i_val+token.length)!=token) {return 0;}
			else {i_val+=token.length;}
			}
		}
	// If there are any trailing characters left in the value, it doesn't match
	if (i_val != val.length) { return 0; }
	// Is date valid for month?
	if (month==2) {
		// Check for leap year
		if ( ( (year%4==0)&&(year%100 != 0) ) || (year%400==0) ) { // leap year
			if (date > 29){ return 0; }
			}
		else { if (date > 28) { return 0; } }
		}
	if ((month==4)||(month==6)||(month==9)||(month==11)) {
		if (date > 30) { return 0; }
		}
	// Correct hours value
	if (hh<12 && ampm=="PM") { hh=hh-0+12; }
	else if (hh>11 && ampm=="AM") { hh-=12; }
	var newdate=new Date(year,month-1,date,hh,mm,ss);
	return newdate.getTime();
	}

// ------------------------------------------------------------------
// parseDate( date_string [, prefer_euro_format] )
//
// This function takes a date string and tries to match it to a
// number of possible date formats to get the value. It will try to
// match against the following international formats, in this order:
// y-M-d   MMM d, y   MMM d,y   y-MMM-d   d-MMM-y  MMM d
// M/d/y   M-d-y      M.d.y     MMM-d     M/d      M-d
// d/M/y   d-M-y      d.M.y     d-MMM     d/M      d-M
// A second argument may be passed to instruct the method to search
// for formats like d/M/y (european format) before M/d/y (American).
// Returns a Date object or null if no patterns match.
// ------------------------------------------------------------------
function parseDate(val) {
	var preferEuro=(arguments.length==2)?arguments[1]:false;
	generalFormats=new Array('y-M-d','MMM d, y','MMM d,y','y-MMM-d','d-MMM-y','MMM d');
	monthFirst=new Array('M/d/y','M-d-y','M.d.y','MMM-d','M/d','M-d');
	dateFirst =new Array('d/M/y','d-M-y','d.M.y','d-MMM','d/M','d-M');
	var checkList=new Array('generalFormats',preferEuro?'dateFirst':'monthFirst',preferEuro?'monthFirst':'dateFirst');
	var d=null;
	for (var i=0; i<checkList.length; i++) {
		var l=window[checkList[i]];
		for (var j=0; j<l.length; j++) {
			d=getDateFromFormat(val,l[j]);
			if (d!=0) { return new Date(d); }
			}
		}
	return null;
	}
//-----------------------------------------End of Date Functions-----------------------------------


//LimitInputLength(txtcntrl,maxlength) limits the input to txtcntrl into maxlength digits or letters.
function LimitInputLength(txtcntrl,maxlength)
{
 if (txtcntrl.value.length > maxlength)
	txtcntrl.value= txtcntrl.value.substring(0,maxlength);

}
//**********************************************************************


//function to support CheckEnter
function IsEnterPressed(e)
{
	if (isIE) e=event;
		
	var isenter;
	isenter= false;
	if(isFireFox)
	{
		isenter=netscapeKeyPress(e);
	}
	else if (navigator.appName == 'Netscape') {
		window.captureEvents(Event.KEYPRESS);
		window.onKeyPress = netscapeKeyPress;
		isneter= netscapeKeyPress;
	}
	else 
		var isenter = microsoftKeyPress(e);
	
	return isenter;
}

function netscapeKeyPress(e) {
    if (e.which == 13)
          return true;
     else return false;
}

function microsoftKeyPress(e) {
    if (e.keyCode == 13)
        return true;
     else return false;
}
//**********************************************************************

//FUNCTION DISABLE RIGHT CLICK ON PAGE
function DisableRightClick(e)
{
	if(isIE) e=event;
	
	var rightclick;
	
	if (isNav) rightclick=(e.which==2);
	else if (isIE) rightclick=(e.button==2);

if (rightclick==true)
{
	//DoNothing();
}

}
//**********************************************************************

//DisableEnter is a function that detects if enter is pressed in
// a control and prevents the page from refreshing
function DisableEnter(e)
{
	var chk=IsEnterPressed(e);
	if (chk) DoNothing();
}

//**********************************************************************

//DoNothing is a function that does nothing
function DoNothing()
{	
	if (window.parent)		
		window.parent.focus();
}
//**********************************************************************

//selectAll() selects the text in a text box
function selectAll(cntrl)
{
	cntrl.select();
}

// This function replaces all instances of findStr in oldStr with repStr.
function replaceAll(oldStr,findStr,repStr) {
  var srchNdx = 0;  // srchNdx will keep track of where in the whole line
                    // of oldStr are we searching.
  var newStr = "";  // newStr will hold the altered version of oldStr.
  while (oldStr.indexOf(findStr,srchNdx) != -1)  
                    // As long as there are strings to replace, this loop
                    // will run. 
  {
    newStr += oldStr.substring(srchNdx,oldStr.indexOf(findStr,srchNdx));
                    // Put it all the unaltered text from one findStr to
                    // the next findStr into newStr.
    newStr += repStr;
                    // Instead of putting the old string, put in the
                    // new string instead. 
    srchNdx = (oldStr.indexOf(findStr,srchNdx) + findStr.length);
                    // Now jump to the next chunk of text till the next findStr.           
  }
  newStr += oldStr.substring(srchNdx,oldStr.length);
                    // Put whatever's left into newStr.             
  return newStr;
}
//**********************************************************************

//function valiudates that a control has a valid integer number inside it
//function takes the control as a parameter
function ValidateInteger(cntrl,checkForZero,defaultValue,lang)
{
	if(!_isInteger(cntrl.value) ||  _isEmpty(cntrl.value))
	{		
		if (lang!="ar")
			alert("Incorrect Value!");
		else
			alert("خطأ في القيمة");
		cntrl.value=defaultValue;
		return false;
	}		
	if(checkForZero)
	{
		if(trim(cntrl.value)==0) 
		{
			cntrl.value=defaultValue;
			if (lang!="ar")
				alert("Can't be zero!");
			else				
				alert("القيمة لا يمكن أن تكون صفر");
			return false;
		}
	}
	return true;
}
//function valiudates that a control has a valid integer number inside it
//function takes the control as a parameter
function ValidateDouble(cntrl,checkForZero,defaultValue,lang)
{
	if(!_isDouble(cntrl.value) || _isEmpty(cntrl.value))
	{		
		if (lang!="ar")
			alert("Incorrect Value!");
		else
			alert("القيمة غير صحيحة");
		cntrl.value=defaultValue;		
		return false;
	}		
	if(checkForZero)
	{
		if(trim(cntrl.value)==0) 
		{
			cntrl.value=defaultValue;
			if (lang!="ar")
				alert("Can't be zero!");
			else				
				alert("القيمة لا يمكن أن تكون صفر");
			return false;
		}
	}
	return true;
}
//function validates that a control is not empty
//function takes the control as a parameter
function ValidateEmpty(cntrl,lang)
{
	if(_isEmpty(cntrl.value))
	{
		if (lang!="ar")
			cntrl.value="enter text here";
		else
			cntrl.value="أدخل قيمة هنا";
		cntrl.focus();
		cntrl.select();
		if (lang!="ar")
			alert("Can't be empty!");
		else
			alert("يجب أدخال قيمة");
		return false;
	} 
	else return true;
}	

//function ValidateEntry() validates that a value entered is
// a number and is in a given range
function ValidateEntry(cntrl,checkForZero,defaultValue,minValue,maxValue,lang)
{
	var check;
	check=ValidateInteger(cntrl,checkForZero,defaultValue,lang);
	if (check)
	{
		if (cntrl.value<minValue)
		{
			alert("Value should be greater than " + (minValue-1));
			cntrl.value=defaultValue;
			return false;
		}
		if (cntrl.value>maxValue)
		{
			alert("Value should be less than " + (maxValue+1));
			cntrl.value=defaultValue;
			return false;
		}	
		return true;		
	}
	return false;		
}

//function OpenHelp() opens a help page in the top left corner of the screen
function OpenHelp(pageURL)
{
	window.open(pageURL,'MoreHelp','scrollbars=yes,titlebar=no,dependent=yes,width=300,height=500,top=0,left=0','True');
}