/**
 * 数字格式转换成千分位
 *@param{Object}num
 */
function commafy(num){
  if((num+\"\").Trim()==\"\"){
   return\"\";
  }
  if(isNaN(num)){
   return\"\";
  }
  num = num+\"\";
  if(/^.*\\..*$/.test(num)){
   varpointIndex =num.lastIndexOf(\".\");
   varintPart = num.substring(0,pointIndex);
   varpointPart =num.substring(pointIndex+1,num.length);
   intPart = intPart +\"\";
    var re =/(-?\\d+)(\\d{3})/
    while(re.test(intPart)){
     intPart =intPart.replace(re,\"$1,$2\")
    }
   num = intPart+\".\"+pointPart;
  }else{
   num = num +\"\";
    var re =/(-?\\d+)(\\d{3})/
    while(re.test(num)){
     num =num.replace(re,\"$1,$2\")
    }
  }
  return num;
}

/**
 * 去除千分位
 *@param{Object}num
 */

function delcommafy(num){
  if((num+\"\").Trim()==\"\"){
   return\"\";
  }
  num=num.replace(/,/gi,\'\');
  returnnum;
}