function removeComma(obj,isstr)
{
	var sep=",";
	if(isstr)
		return obj.replace(new RegExp(sep,"g"),"");
	else
	{
		obj.value=obj.value.replace(new RegExp(sep,"g"),"");
		return obj.value;
	}
}
function moneyCommaSep(obj,isstr)
{
	var sep=",";
	var objval=removeComma(obj,isstr);
	var regexp=new RegExp("\\B(\\d{3})("+sep+"|$)");
	do
	{
		objval=objval.replace(regexp,sep+"$1");
	}
	while(objval.search(regexp)>=0);
	if(isstr)
		return objval;
	else
		obj.value=objval;
}