function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function unblur() {
	this.blur();
} 
function blurLinks() {
	if (!document.getElementById) return;
	theLinks = document.getElementsByTagName("A");
	theAreas = document.getElementsByTagName("AREA");
	for(i=0; i<theLinks.length; i++) {theLinks[i].onfocus = unblur;}
	for(i=0; i<theAreas.length; i++) {theAreas[i].onfocus = unblur;}
  }
  
  

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


var xmlHttp;
var formname;

function email_me(Form)
{
	formname = Form.name;
	var params = "";
	var i;
	var Element;
	var type;
	var name;
	var fieldvalue;
	var optional;
	var BadFields = "";
	var Title;
	var Titles = new Array();
	var outMessage = "";
	
	
	//alert(formname);
	
	//alert(Form.length);
	
	var Optional = new Array();

	// optional fields
	Optional['memb_num'] = true;
	Optional['department'] = true;
	Optional['work_name'] = true;
	Optional['work_add1'] = true;
	Optional['work_add2'] = true;
	Optional['work_phone'] = true;
	
	
	for(i = 0; i < Form.length; i++)
	{
		Element = Form.elements[i];
		
		type = Element.type;
		name = Element.name;
		
		//alert("name:"+name+" type:"+type);
		
		
		if(type == "text")
		{
			fieldvalue = Element.value;
			params = params + name + "=" + fieldvalue + "&";
			
			optional = Optional[name];
			if ( (fieldvalue == '' || fieldvalue == name ) && typeof(optional) == "undefined")
			{
				Title = getTitle(name,Titles);
				BadFields += "- " + Title + "\n";
			}   
			
			//alert(params);
		}
		else if(type == "select-one")
		{
			fieldvalue = selectval(Element);
			
			fieldvalue = Element.value;
			params = params + name + "=" + fieldvalue + "&";
			//alert(params);
		}
		else if(type == "hidden")
		{
			fieldvalue = Element.value;
			params = params + name + "=" + fieldvalue + "&";
		}
		
	}
	
	
	if(BadFields)
	{
		outMessage = "We are unable to proceed as the following \n";
		outMessage += "required fields have not been completed:\n\n";
		outMessage += BadFields;

		alert(outMessage);
		return false;
	}
	
	//alert(params);
	
	xmlHttp=GetXmlHttpObject();
	
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request");
		return;
	}
	
	var url="http://www.barna.co.uk/ajax_email_me.php?";
	url=url+params;
	
	//alert(url);
	
	xmlHttp.onreadystatechange = Finished;
	
	xmlHttp.open("GET",url,true)
	
	xmlHttp.send(null)
	
	return true;
}

function Finished() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		//document.getElementById('search').innerHTML = xmlHttp.responseText;
		var response = xmlHttp.responseText;
		
		//alert(response);
		
		document.join_us.submit();
		
		document.body.innerHTML = document.body.innerHTML + "<span></span>";
	}
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
		//	alert("Mozilla");
	}
	catch (e)
	{
		//Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
			//	alert("IE");
		}
		catch (e)
		{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			//	alert("IEError");
		}
	}
	
	return xmlHttp;
}

function selectval(Sel)
{
	return Sel.options[Sel.selectedIndex].value;
}

function getTitle(name,Titles)
{
	Title = Titles[name];
	if (typeof(Title) == "undefined")
	{
		Title = name;
		Title = Title.replace(/_/g," ");
	}
	return Title;
}