/**
 * Javascript Functions Library
 */

 

function isNull(str) {
    return (str == null || str.length == 0);
}

function isBlank(str) {
    for (i = 0; i < str.length; i++) {
        if (str.charAt(i) != " ")
            return false;
    }
    return true;
}

function isDigits(str) {
    var i;
    for (i = 0; i < str.length; i++) {
        mychar = str.charAt(i);
        if (mychar != ","){
          if (mychar < "0" || mychar > "9" ) {
        	    return false;
          }
        }
    }
    return true;
}


function isFloat(str) {
    var i;
    for (i = 0; i < str.length; i++) {
        mychar = str.charAt(i);
	if (mychar != "."){
           if (mychar != ","){
	        if (mychar < "0" || mychar > "9" ) {
        	    return false;
        	}
            }
	}
    }
    return true;
}


function isNumber(num) {
    return (!isNaN(num) && num.indexOf(" ", 0) == -1);
}


function isEmail(str) {
    return ((str.indexOf('@') < 0) || (str.indexOf('.') < 0))
}


function isValueSelected(str){
	return (str=="null")
}


function roundNumber(numberfield,numberofdecimals) {
	var numberField = numberfield; // Field where the number appears
	var rlength = numberofdecimals; // The number of decimal places to round to
	var newnumber =0;
	numberField=numberField*1;	

	if (numberField >0){
		newnumber = Math.round(numberField.value*Math.pow(10,rlength))/Math.pow(10,rlength);
		newnumber = newnumber*1;
	}
	return newnumber;
}


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


/**
 * DHTML date validation script for dd/mm/yyyy. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
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, fieldname){
	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(fieldname+" format should be : dd/mm/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month for "+fieldname)
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day for "+fieldname)
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear+" for "+fieldname)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date for "+fieldname)
		return false
	}
return true
}

function valiDate(dtStr, fieldname) {
/* Javascript date check by Justin Klein Keane  Copyright (C) 2004 

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
	   
*/
var myRegex = new RegExp("^[0-9]{4}\-([0][0-9]|[1][0-2])\-([0-2][0-9]|[3][0-1])$");
if (dtStr.match(myRegex))
	{//valid date format, check for valid date
	var theDay = Math.round(dtStr.substr(8,2));
	var theMonth = Math.round(dtStr.substr(5,2));
	var theYear = Math.round(dtStr.substr(0,4));
	
	if ((theYear%4 == 0) && (theDay > 29) && (theMonth == 2)) {
		alert ("Not a valid date.");
		return false;
		}
	else if ((theYear%4 != 0) && (theDay > 28) && (theMonth == 2)) {
		alert ("Not a valid date.");
		return false;
		}
	else if ((theDay > 30) && (theMonth == 4 || theMonth == 6 || theMonth == 0 || theMonth == 11)) {
		alert ("Not a valid date.");
		return false;
		}
	else {
		return true;
		}
	}
else
	{
	alert (fieldname+" not in correct yyyy-mm-dd format.");
	return false;
	}
}

function ageCheck(dtStr, fieldname) {
  var currentYear , theYear, age 
  
  currentYear = new Date();
  currentYear = currentYear.getYear();
  theYear = Math.round(dtStr.substr(0,4));
  age = currentYear - theYear
  
  if (age <= 35){
      return true;
  }
  else{
      alert (fieldname);
      return false;
  }
}

function ValidateFileType(sUpload)
{   
    //Check if file is a valid .doc file
    if(sUpload!="")
    {
        var iExt=sUpload.indexOf("\\");
        var iDot=sUpload.indexOf(".");
        if((iExt < 0 ) || (iDot < 0))
        {
            alert("Select a valid file for upload!");             
            return false; 
        }
        if(iDot > 0)
        {
            var aUpload=sUpload.split(".");
            if(aUpload[aUpload.length-1]!="doc")
            {
                alert("Only *.doc Files Are Allowed! Please upload only Word Documents!");
                return false;
            }
            else
                return true;
        }
    }
}