function formatNumber (obj, decimal) {
         //decimal  - the number of decimals after the digit from 0 to 3
         //-- Returns the passed number as a string in the xxx,xxx.xx format.
           anynum=eval(obj);
           divider =10;
           switch(decimal){
                case 0:
                    divider =1;
                    break;
               case 1:
                   divider =10;
                   break;
               case 2:
                   divider =100;
                   break;
               default:       //for 3 decimal places
                   divider =1000;
           }

          workNum=Math.abs((Math.round(anynum*divider)/divider));

          workStr=""+workNum

          if (workStr.indexOf(".")==-1){workStr+="."}

          dStr=workStr.substr(0,workStr.indexOf("."));dNum=dStr-0
          pStr=workStr.substr(workStr.indexOf("."))

          while (pStr.length-1< decimal){pStr+="0"}

          if(pStr =='.') pStr ='';

          //--- Adds a comma in the thousands place.
          if (dNum>=1000) {
             dLen=dStr.length
             dStr=parseInt(""+(dNum/1000))+","+dStr.substring(dLen-3,dLen)
          }

          //-- Adds a comma in the millions place.
          if (dNum>=1000000) {
             dLen=dStr.length
             dStr=parseInt(""+(dNum/1000000))+","+dStr.substring(dLen-7,dLen)
          }
          retval = dStr + pStr
          //-- Put numbers in parentheses if negative.
          if (anynum<0) {retval="("+retval+")";}

       //You could include a dollar sign in the return value.
         //retval =  "$"+retval
         obj.value = retval;
         return retval;
   }