function Submit(){
 if (stringToDate(document.form1.startdate.value)<stringToDate(document.form1.today.value))
  {
    alert("入住日期不能早于今日！"); 
    form1.startdate.focus();
   	return (false);
  }  
     
 if (stringToDate(document.form1.startdate.value)>=stringToDate(document.form1.enddate.value))
  {
    alert("离店日期应大于入住日期！"); 
    form1.enddate.focus();
   	return (false);
  }

    form1.submit();
  return (true);
 // return (false);
}

function Submit2(key_value)
{
	  if (key_value=='0') 
	  {
	    var value=window.event.keyCode;
	    if (value!='13') 
	    {
		  return (false);
		}
	  }
	  Submit();
}
function setCheckInDate(d)
{
	document.getElementById("startdate").value=d;
	//if(document.getElementById("enddate").value.length==0)
	//{
		showCalendar('imageCalendar2',false,'enddate','startdate');
	//}
}