function checkname(f)
{
	var v = Trim(f.forename.value);
	
	if (/\S\s+\S/.test(v)) {
		alert("This dictionary only contains first names. Please enter just one name at a time.");
		f.forename.focus();
		f.forename.select();
		return false;
	}
	else if (/\S\-\S/.test(v)) {
		alert("Sorry, the dictionary does not contain hyphenated names. Try searching for each part separately.");
		f.forename.focus();
		f.forename.select();
		return false;
	}
	return ajaxFetch(f);
}

function LTrim(str)
{
	for (var k=0; k < str.length && str.charAt(k) <= " "; k++);
	return str.substring(k,str.length);
}

function RTrim(str)
{
	for (var j=str.length-1; j>=0 && str.charAt(j)<=" "; j--);
	return str.substring(0,j+1);
}

function Trim(str)
{
	return LTrim(RTrim(str));
}


// preload spinner animation
spinner = new Image();
spinner.src = "/img/spin.gif";


function ajaxFetch(f)
{
	var xmlHttp;
	
	// Firefox, Opera, Safari
	try { xmlHttp=new XMLHttpRequest(); }
	catch (e) {
	  // Internet Explorer
 		try { xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); }
  	catch (e) {
	    try { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); }
	    catch (e) {
	      // no ajax, so continue with form submission
  	    return true;
      }
    }
  }
  
  xmlHttp.onreadystatechange=function() {
  	if(xmlHttp.readyState==4) {
      document.getElementById('spinner').src = "/img/spin0.png";
      document.getElementById('ynij').innerHTML=xmlHttp.responseText;
      document.getElementById('ntxt').focus();
      document.getElementById('ntxt').select();
    }
  }
  document.getElementById('spinner').src = "/img/spin.gif";
  var name = f.forename.value;
  var style = f.style.value;
  xmlHttp.open("GET","/your-name-in-japanese/?forename="+name+"&style="+style+"&ajax=1",true);
  xmlHttp.send(null);
  return false;
}

function ajaxclick(n)
{
	document.getElementById('ntxt').value=n;
	return checkname(document.getElementById('ynf'));
}