// JavaScript Document
function notnull(){
var username=document.getElementById("username").value;
var useremail=document.getElementById("useremail").value;
var userphone=document.getElementById("userphone").value;
var dalei=document.getElementById("anclassid").value;
var xiaolei=document.getElementById("Nclassid").value;
var strtime=document.getElementById("strtime").value;
var endtime=document.getElementById("endtime").value;
var userprice=document.getElementById("userprice").value;


 if(username==""){
    alert("请输入您的姓名");
	return false;
  }
  
  var strReg=""; 

  var r; 


//strReg=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/i;

strReg=/^\w+((-\w+)|(\.\w+))*\@{1}\w+\.{1}\w{2,4}(\.{0,1}\w{2}){0,1}/ig;

r=useremail.search(strReg); 

 if(r==-1&&useremail!="") { 

alert("邮箱格式错误!"); 

 myform.useremail.focus(); 

return false;
}   

if(userphone==""){

    alert("手机号码不能为空"); 

   myform.userphone.focus(); 

   return false;

}else{

    reg=/^1\d{10}$/gi;

    if(!reg.test(userphone)){

        alert("非法的手机号码");

        myform.userphone.focus(); 

       return false;    

}
 
}
if(dalei=="dalei"){
    alert("请选择您所要订房的区域");
	return false;
  }
  if(xiaolei=="xiaolei"){
    alert("请输入小类的名称");
	return false;
  }
  if(strtime==""){
    alert("请选择您的入住日期");
	return false;
  }
   if(endtime==""){
    alert("请选择您的离开日期");
	return false;
  }
  if(userprice=="0"){
    alert("请选择您要订房的价格");
	return false;
  }
  
}