function TextDefault(obj,str,mode)
	{
		if (mode==0){
			if(obj.value==str)
			{
				obj.value="";
			}
		}
		else{
			if(obj.value=="")
			{
				obj.value=str;
			}
		}
	}

function ChangeEndDay(obj,haveall){
        var day=document.getElementById(obj+"_day");
        var month=document.getElementById(obj+"_month").value;
        var year=document.getElementById(obj+"_year").value;
        var test=day.selectedIndex;
        var endDay=findNumDay(month,year);
        var selDay=day.value;
        var DaySelect=day.value;
        if(parseInt(selDay) > parseInt(endDay)){
                selDay=endDay;
        }
        day.innerHTML="";
        var i=1;
        if ( haveall == 1)
        {
                var oOption = document.createElement("OPTION");
                        oOption.value=0;
                        oOption.text="ทั้งหมด";
                        day.add(oOption);
        }else if  ( haveall ==2)
        {
                var oOption = document.createElement("OPTION");
                        oOption.value=0;
                        oOption.text="กรุณาเลือก";
                        day.add(oOption);
        }
        if(navigator.appName != "Netscape"){//Check Browser ของ FireFox
                for(i=1;i<=endDay;i++){
                        var oOption = document.createElement("OPTION");
                        oOption.value=i;
                        oOption.text=i;
                        day.add(oOption);
                }
                day.selectedIndex=selDay-1;
        }else{// IE
                for(i=1;i<=endDay;i++){
                        var oOption = document.createElement("OPTION");
                        oOption.value=i;
                        oOption.text=i;
                        day.appendChild(oOption);
                }
//		day.selectedIndex=selDay-1;
        }
               if ( (DaySelect-1) > endDay)
                    day.selectedIndex = endDay-1;
               else
                   day.selectedIndex =  selDay-1;

}

function findNumDay(month,year){
if(year%4==0){
        var myArray = ["", "31", "29", "31", "30", "31", "30", "31", "31", "30", "31", "30", "31"];
}else{
        var myArray = ["", "31", "28", "31", "30", "31", "30", "31", "31", "30", "31", "30", "31"];
}
return myArray[month];
}