<!--
function check() {
if ( document.show.cityy.value == "")  {
alert("Please enter the city name!");
return false;
}
if ( document.show.ruzhu.value == "" || document.show.ruzhu.value == "yyyy-mm-dd")  {
alert("Please enter a valid check-in date!");
document.show.ruzhu.focus();
return false;
}
if ( document.show.lidian.value == "" || document.show.lidian.value == "yyyy-mm-dd")  {
alert("Please enter a valid check-out date!");
document.show.lidian.focus();
return false;
}
if ( document.show.lidian.value == document.show.ruzhu.value)  {
alert("The check-out date can not be earlier than the check-in date!");
document.show.lidian.focus();
return false
}
if ( document.show.citya.value == "")  {
alert("Please enter the city name!");
document.show.citya.focus();
return false
}
if (stringToDate(document.show.lidian.value,true)<=stringToDate(document.show.ruzhu.value,true))  {
alert("The check-out date can not be earlier than the check-in date!");
document.show.lidian.focus();
return false
}
}

function checkhotel() {
if ( document.leftshow.ruzhu.value == "")  {
alert("Please enter a valid check-in date!");
document.leftshow.ruzhu.focus();
return false
}
if ( document.leftshow.lidian.value == "")  {
alert("Please enter a valid check-out date!");
document.leftshow.lidian.focus();
return false
}
if ( document.leftshow.lidian.value == document.leftshow.ruzhu.value)  {
alert("The check-out date can not be earlier than the check-in date!");
document.leftshow.lidian.focus();
return false
}

if (stringToDate(document.leftshow.lidian.value,true)<=stringToDate(document.leftshow.ruzhu.value,true))  {
alert("The check-out date can not be earlier than the check-in date!");
document.leftshow.lidian.focus();
return false
}
alert(document.leftshow.citya.value);
if ( document.leftshow.citya.value == ""){
return false;
}
}

function DateFocus(obj){
if(obj.value='yyyy-mm-dd'){
   obj.value='';
}
}
function DateBlur(obj){
if(obj.value==''){
   obj.value='yyyy-mm-dd';
}
}
//-->