function isNumber(data) { 

var numStr="0123456789"; 
var thisChar; 
var counter=0; 
for (var i=0; i<data.length; i++) { 
thisChar = data.substring(i, i+1); 
if (numStr.indexOf(thisChar) != -1) 
counter++; 
} 
if (counter == data.length) { 
return 0; 
} 
else 
{ 
return 1; 
} 
}

function nocode(data) { 

var numStr="<?>"; 
var thisChar; 
var counter=0; 
for (var i=0; i<data.length; i++) { 
thisChar = data.substring(i, i+1); 
if (numStr.indexOf(thisChar) != -1) 
counter++; 
} 
if (counter == data.length) { 
return 0; 
} 
else 
{ 
return 1; 
} 
}

	
function check_bull(form)
{  

  if ((form.Loc.value==""))
  {
   alert("Marina is empty");
   form.Loc.focus();
   return false;
  }
 if (form.Type.value=="")
  {
   alert("Boat is empty");
   form.Type.focus();
   return false;
  }
 if ((form.Cabins.value=="")||(isNumber(form.Cabins.value)))
  {
   alert("Cabins is empty or data are not numbers");
   form.Cabins.focus();
   return false;
  }
 if ((form.Places.value=="")||(isNumber(form.Places.value)))
  {
   alert("Guests is empty  or data are not numbers");
   form.Places.focus();
   return false;
  }
 if (form.Captain.value=="")
  {
   alert("Crew is empty");
   form.Captain.focus();
   return false;
  }
 if (form.Motored.value=="")
  {
   alert("Power/Sail is empty");
   form.Motored.focus();
   return false;
  }
   if (form.Fromdate.value=="")
  {
   alert("Date from is empty ");
   form.Fromdate.focus();
   return false;
  }
    if (form.Tilldate.value=="")
  {
   alert("Date till is empty ");
   form.Tilldate.focus();
   return false;
  }
 if ((form.Price.value=="")||(isNumber(form.Price.value)))
  {
   alert("Price is empty or data are not numbers");
   form.Price.focus();
   return false;
  }
 if ((form.Cod.value==""))
  {
   alert("Code is empty");
   form.Cod.focus();
   return false;
  }
 if (form.Name.value=="")
  {
   alert("Country is empty");
   form.Name.focus();
   return false;
  }
 if (form.Currency.value=="")
  {
   alert("Currency is empty");
   form.Currency.focus();
   return false;
  }


  return true;
}

function check_reg(form)
{  

  if (form.Login.value=="")
  {
   alert("Login is empty");
   form.Login.focus();
   return false;
  }
 if (form.Uname.value=="")
  {
   alert("Name is empty");
   form.Uname.focus();
   return false;
  }
 if (form.Email.value=="")
  {
   alert("Email is empty");
   form.Email.focus();
   return false;
  }
 if (form.Name.value=="")
  {
   alert("Company is empty");
   form.Name.focus();
   return false;
  }
   if (form.Addr.value=="")
  {
   alert("Address is empty");
   form.Adrr.focus();
   return false;
  }
 if (form.Loc.value=="")
  {
   alert("Marina is empty");
   form.Loc.focus();
   return false;
  }
	
   if (form.Sdiscr.value=="")
  {
   alert("Short discription is empty");
   form.Sdiscr.focus();
   return false;
  }
   if (form.Fdiscr.value=="")
  {
   alert("Full discription is empty");
   form.Fdiscr.focus();
   return false;
  }
   if (form.Pword.value=="")
  {
   alert("Password is empty");
   form.Pword.focus();
   return false;
  }
   if (form.Dic.value=="")
  {
   alert("ID is empty");
   form.Dic.focus();
   return false;
  }
   if (form.Ic.value=="")
  {
   alert("VAT is empty");
   form.Ic.focus();
   return false;
  }


  return true;
}

function sale (form){
	
//alert(form.Roletka.value);
if (form.Roletka.value=='Sale')
	{
		
		form.DateFrom.disabled=true ;
		form.DateTill.disabled=true ;
	
		
		
	}
	else
	{
		
		form.DateFrom.disabled=false ;
		form.DateTill.disabled=false ;
		
	
	}
	
}