function decode_alert_concentrator(source,tinsec,month,day,year,hour,minute,second,len,data)
{
var i, j, control, version, TS, TF, cyclic, more  ;
var is, num ;
var sensor = Array() ;
var idata = Array() ;
var pmsg = Array() ;
var soffset ;
var toffset = Array() ;
var is_offset ;
var i1, i2 ;
var tmm = Array() ;
var tdata = Array() ;
var wtinsec ;

   control = data[0] ;
   version = control & 0x03 ;
   control = control >> 2 ;
   TS = control & 0x01 ;
   control = control >> 1 ;
   TF = control & 0x01 ;
   control = control >> 1 ;
   cyclic = control & 0x07 ;
   control = control >> 3 ;
   more = control ;
      
   is = 1 ;
   soffset = 0 ;
   is_offset = FALSE ;
   if ( TS ) {
      soffset = 256*data[is] + data[is+1] ;
      is += 2 ;
      is_offset = TRUE ;
   }   
   
   num = (len - is) / 4 ;
   
   for ( i = 0 ; i < num ; i++  ) {

        j = is + 4*i ;
        toffset[i] = data[j+3] ;    //  Offset
        i1 = data[j] ;
        i2 = data[j+1] ;
        sensor[i] = i1 + 256*(i2 % 32) ;
        i1 = data[j+1] >> 5 ;
        i2 = data[j+2] ;
        idata[i] = 256*i1 + i2 ;
   
   }
   
    var d = new Date() ;
    var timezone = d.getTimezoneOffset() ;
    is_offset = 0 ;   // Temporary 5/6/2014
    if ( is_offset ) {
                
        if ( hour < 12 ) {                
           hour = minute = second = 0 ;          
        } else {                 
           hour =  12 ;
           minute = second = 0 ;
        }

        var dtemp = year ; 
        dtemp = dtemp + "-"+ month ;
	    dtemp = dtemp + "-" + mday ;
	    dtemp = dtemp + " " + hour ;
	    dtemp = dtemp + ":" + minute ;
	    dtemp = dtemp + ":" + second ;
        var dateTime = new Date(dtemp).getTime() ;
        var tinsec = Math.floor(dateTime/1000) ;

        wtinsec = tinsec ;
        tinsec += soffset ;
                        
        for ( i = 0 ; i < num ; i++ )
           tdata[i] = tinsec - toffset[i] - timezone ; // + 3600*tmm.tm_isdst ;
                
    } else {
        for ( i = 0 ; i < num ; i++ ) {
            tdata[i] = tinsec - toffset[i] - timezone ; // + 3600*tmw.tm_isdst ;
        }
                                
    }

		var d = new Date(tdata[i]*1000) ;
		var year = d.getFullYear() ;
		var month = d.getMonth() + 1;
		if ( month < 10 )
			month = '0'+month ;
		var mday = d.getDate() ;
		if ( mday < 10 )
			mday = '0' + mday ;
		var hour = d.getHours() ;
		if ( hour < 10 )
			hour = '0'+hour ;
		var minute = d.getMinutes() ;
		if ( minute < 10 )
			minute = '0' + minute ;
		var seconds = d.getSeconds() ;
		if ( seconds < 10 )
			seconds = '0' + seconds ;
        
	var str = "Decoded ALERT Concentrator Message" ;
    for ( i = 0 ; i < num ; i++ ) {
		var stime = month+'/'+mday+'/'+year+' '+hour+':'+minute+':'+seconds ;
        str = str + "\n" + "Sensor " + sensor[i] " / data = "+idata[i] "  / time = "+stime ;
    }
    alert(str) ;
   
   
   
}


function strtime(tinsec)
{
    var d = new Date(tinsec) ;
	var year = d.gtFullYear() ;
	var month = d.getMonth() ;
	if ( month < 10 )
		month = '0'+month ;
	var day = d.getDate() ;
	if ( day < 10 )
		day = '0'+day ;
	var hour = d.getHours() ;
	if ( hour < 10 )
		hour = '0'+hour ;
	var minute = d.getMinutes() ;
	if ( minute < 10 )
		minute = '0'+minute ;
	var second = d.getSeconds() ;
	if ( second < 10 )
		second = '0'+second ;
	str = month + '/' + day + '/' + year + ' ' + hour + ':' + minute + ':' + second ;
    return(str) ;
	
}

function decode_alert_concentrator(source,tinsec,month,day,year,hour,minute,second,len,data)
{

      
   

   
}

function decodeC(msg)
{
var hop = Array() ;
    var msg = msg.substr(1) ;
	var str = msg.split(',') ;
	var indx = 0 ;
	var count = str.length ;
		
    var num = parseInt(str[indx]) ;
	indx++ ;
   
    for ( var i = 0 ; i < num ; i++ ) {
       hop[i] = parseInt(str[indx]) ;
	   indx++ ;
    }

    var i = 0 ;
    var year = 0 ;
    var month = 0 ;
    var tinsec = Array() ;
	var sensor = Array() ;
	var data = Array() ;
	var dateTime ;
	var dtemp ;
	var nvalues ;
    while ( indx < count ) {
		   
	   console.log(indx + " / " +count) ;
   
       year = str[indx] ;
       indx++ ;
       if ( indx >= count )
		  break ;
		  
       month = parseInt(str[indx]) ;
	   if ( month < 10 )
		  month = '0'+month ;
	   indx++ ;
       if ( indx >= count )
	     break ;

        mday = parseInt(str[indx]) ;
		if ( mday < 10 )
		  mday = '0' + mday ;
		indx++ ;
        if ( indx >= count )
		  break ;

        hour = parseInt(str[indx]) ;
		if ( hour < 10 )
		  hour = '0' + hour ;
		indx++ ;
        if ( indx >= count )
		  break ;

        minute = parseInt(str[indx]) ;
		if ( minute < 10 )
			  minute = '0' + minute ;
	    indx++ ;
        if ( indx >= count )
		  break ;

        second = parseInt(str) ;
		if ( second < 10 )
		  second = '0' + second ;
		indx++ ;
        if ( indx >= count )
		  break ;
  
        dtemp = year ; 
		dtemp = dtemp + "-"+ month ;
		dtemp = dtemp + "-" + mday ;
	    dtemp = dtemp + " " + hour ;
		dtemp = dtemp + ":" + minute ;
		dtemp = dtemp + ":" + second ;
        dateTime = new Date(dtemp).getTime() ;
        tinsec[i] = Math.floor(dateTime/1000) ;
        sensor[i] = parseInt(str[indx]) ;
		indx++ ;
        if ( indx >= count )
		  break ;
   
         data[i] = parseInt(str[indx]) ;
         i++ ;
    }
    nvalues = i ;
    var str = "Hops:" ;
	for ( i = 0 ; i < num ; i++ ) {
	   str = str + ' ' + hop[i] ;
	   if ( i < (num-1) )
		   str = str + ',' ;
	   console.log('hop['+i+'] = '+hop[i]) ;
	}
	alert(str) ;
	str = "Decoded C-message:\n" ;
	for ( i = 0 ; i < nvalues ; i++ ) {
	  var date = new Date(tinsec[i]*1000) ;
	  month = date.getMonth() + 1 ;
	  if ( month < 10 )
		  month = '0'+month ;
	  mday = date.getDate() ;
	  if ( mday < 10 )
		  mday - '0'+mday ;
	  year = date.getFullYear() ;
	  hour = date.getHours() ;
	  if ( hour < 10 )
		  hour = '0'+hour ;
	  minute = date.getMinutes() ;
	  if ( minute < 10 )
		  minute = '0'+minute ;
	  second = date.getSeconds() ;
	  if ( second < 10 )
		  second = '0'+second ;
	  str = str + 'At '+month+'/'+mday+'/'+year+' '+hour+':'+minute+':'+second+' sensor '+sensor[i]+' data = '+data[i] + '\n' ;
	}
	alert(str) ;
	
}