// JavaScript Document

function display_vhotcity1(){
								document.getElementById("vhotcity1").style.display = "";				
										document.getElementById("vhotcity2").style.display = "none";
										document.getElementById("vhotcity3").style.display = "none";
										document.getElementById("vhotcity4").style.display = "none";
					}
function display_vhotcity2(){
								document.getElementById("vhotcity1").style.display = "none";
										document.getElementById("vhotcity2").style.display = "";				
										document.getElementById("vhotcity3").style.display = "none";
										document.getElementById("vhotcity4").style.display = "none";
}
function display_vhotcity3(){
								document.getElementById("vhotcity1").style.display = "none";
										document.getElementById("vhotcity2").style.display = "none";
										document.getElementById("vhotcity3").style.display = "";				
										document.getElementById("vhotcity4").style.display = "none";
}
function display_vhotcity4(){
								document.getElementById("vhotcity1").style.display = "none";
										document.getElementById("vhotcity2").style.display = "none";
										document.getElementById("vhotcity3").style.display = "none";
										document.getElementById("vhotcity4").style.display = "";
}

function isokdate(n1,n2){
  
   if (n1!="" && n2!=""){
      var  date1  =  Date.parse(n1);  
      var  date2  =  Date.parse(n2);  
      var d = Math.ceil((date2-date1)/(24*60*60*1000));
      if(d>30){
         alert("日期跨度大于30天了!");
         return false;
      }   
   }
   return true;
} 

function chksearch1(){
    var hotelname=document.search1.hotelname.value;
	hotelname= hotelname.replace(/^\s*|\s*$/g,"");   
	if(hotelname==""){
        alert("请输入要查询的酒店名称！");
        document.search1.hotelname.focus();
        return false;
	}
    return true; 
}