jsp数值校验问题？

function amarMoney(dMoney,iType)
 {
  dMoney = dMoney.toString().replace(/,/g,"");

  if (dMoney==null || (dMoney==""&&dMoney!=0) || typeof(dMoney)=='undefined') return "";
  if(parseInt(iType,10)!=2 && parseInt(iType,10)!=5 && parseInt(iType,10)<11 ) return dMoney;
  else
  {
  if(parseInt(iType,10)>10) iType=parseInt(iType,10)-10;
  else if(parseInt(iType,10)==5) iType=0;
   
  if(dMoney=="")
  {
  if( ("amar"+dMoney)=="amar") return "";
  else dMoney=0.00;
  }
  else
  dMoney = parseFloat(dMoney,10);
  if(isNaN(dMoney)) dMoney=0.00;

  var sMoney="",i,sTemp="",itemCount,iLength,digit=3,sign="",s1="",s2="",sResultSet="";

  sMoney = myFormatNumber(dMoney,iType);
   
  if(sMoney.indexOf("-")==0)
  {
  sign = "-";
  sMoney = sMoney.substring(1);
  }

  if(iType!=0)