function check()
{
 var frm;
 frm = document.frmroomres;
  
	if(frm.in_date.value == "")
	{
		alert("Enter Your Check in Date");
		frm.in_date.focus();
		return false;
	}
	if(frm.out_date.value == "")
	{
		alert("Enter Your Check-out Date");
		frm.out_date.focus();
		return false;
	}
	if(frm.in_date.value > frm.out_date.value)
	{
		alert("Check-Out date cannot be lesser than Check-In date");
		frm.out_date.value= "";
		frm.out_date.focus();
		return false;
	}
	if(frm.txtname.value == "")
	{
		alert("Enter your Name");
		frm.txtname.focus();
		return false;
	}
	if(frm.txtCompany.value == "")
	{
		alert("Enter your Company Name");
		frm.txtCompany.focus();
		return false;
	}
	if(frm.txtPhone.value == "")
	{
		alert("Enter your Phone number");
		frm.txtPhone.focus();
		return false;
	}
	if(frm.txtEmail.value == "")
	{
		alert("Enter your E_Mail id");
		frm.txtEmail.focus();
		return false;
	}
	
	 str1=frm.txtEmail.value;
	 if (str1 != "")
	 {
		s= str1.lastIndexOf("@");
			if (s == -1 )
			{
				alert("Invalid E-mail ID!");
				frm.txtEmail.focus();
				return false;
			}
			s1= str1.lastIndexOf(".");
			if (s1 == -1 )
			{
				alert("Invalid E-mail Address !");
				frm.txtEmail.focus();
				return false;
			}
	}
	return true;
}