whole_func_string: 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(0);
      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 now; }
              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 now;}
          }
          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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              i_val+=ss.length;}
          else if (token==='a') {
              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 now;}
              i_val+=2;}
          else {
              if (val.substring(i_val,i_val+token.length)!==token) {return now;}
              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 now; }
      // 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 now; }
          }
          else { if (date > 28) { return now; } }
      }
      if ((month===4)||(month===6)||(month===9)||(month===11)) {
          if (date > 30) { return now; }
      }
  
      // 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;
  }
func_code_string: 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(0);
      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 now; }
              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 now;}
          }
          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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              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 now;}
              i_val+=ss.length;}
          else if (token==='a') {
              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 now;}
              i_val+=2;}
          else {
              if (val.substring(i_val,i_val+token.length)!==token) {return now;}
              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 now; }
      // 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 now; }
          }
          else { if (date > 28) { return now; } }
      }
      if ((month===4)||(month===6)||(month===9)||(month===11)) {
          if (date > 30) { return now; }
      }
  
      // 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;
  }
func_documentation_string: ------------------------------------------------------------------ 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. ------------------------------------------------------------------