// isNumber ------------------------------------------------------------------------------
  function isNumber_pozitiv(theElement, etiketa)
  {
    s = theElement.value;
    if (isNaN(Math.abs(theElement.value)) && (s.charAt(0) != "#"))
    {
        if ( isNumber_pozitiv.arguments.length  < 1 ) 
           alert(alert_isnumber1_mesg);
        else  
        { 
           for (var i=0; (i <= s.length && s.charAt(i) != "."); )
           {
            if (((s.charAt(i) >= 0) && (s.charAt(i) <= 9)) ||
                 (s.charAt(i) == "," && i != 0 && i != s.length-1) || (s.charAt(i) == ".") )
                   i++; 
            else 
             { 
               //alert( "Vlera e " + etiketa +  " duhet tė jetė njė numėr nė formatin e caktuar" ); 
               alert(alert_isnumber1_mesg);
               theElement.focus(); 
               return false; 
             } 
           } 
          if (s.charAt(i) == ".") 
           { 
  	     for (i++;i <= s.length; ) 
             { 
              if (((s.charAt(i) >= 0) && (s.charAt(i) <= 9))) 
                i++; 
              else 
              { 
               //alert( "Vlera e " + etiketa +  " duhet tė jetė njė numėr nė formatin e caktuar" ); 
               alert(alert_isnumber1_mesg);
               theElement.focus(); 
               return false;
              } 
             } 
           } 
         } 
    } 
    
    if (s != "")
       {
        if(s <= 0)
          {
           alert(alert_isnumber_pozitiv_mesg);
           theElement.focus(); 
           return false;
          }
       }
    return true;
  }
//----------------------------------------------------------------------------------------