function fnSendMail() {

	var fname = fnGetVal('fname');
	var email = fnGetVal('email');
	var message = fnGetVal('message');

	if(fnCheckMail(email) && fnIsValidMsg(message)) {

		fnDisplayData("message_status", "Moment geduld alstublieft...");

		var query = "&_name=" + fname + "&_email=" + email + "&_body=" + message;
		$.ajax({
			type: "POST",
			url: "sendmail.php",
			data: query,
			success: function(data) {
				if(eval(data)) {
					fnDisplayData("message_status", "Dank voor je bericht!");
				}
				else {
					fnDisplayData("message_status", "Er was een probleem bij het verzenden van mail. Probeer het later opnieuw.");
				}
			}
		});
	}
	else {
		fnDisplayData("message_status", "Heb je alles goed ingevuld?");
	}
}

function fnCheckMail(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	   return false;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   return false;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    return false;
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	    return false;
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    return false;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	    return false;
	 }
		
	 if (str.indexOf(" ")!=-1){
	    return false;
	 }

	 return true;					
}

function fnGetObj(objID) {
	var elem = document.getElementById(objID);
	if(elem) {
		return elem ;
	}
	else {	
		return false;
	}
}

function fnSetVal(objID, value)
{
	var elem = document.getElementById(objID);
	if(eval(elem)) {
		elem.value = value ;
	}
}

function fnGetVal(objID) {
	var elem = document.getElementById(objID);
	if(elem) {
		return elem.value;
	}
	else {
		return "";
	}
}

function fnTrim(s) {
	var t = s.substring(0,s.length);
	while (t.substring(0,1) == ' ') {
		t = t.substring(1,t.length);
	}
	
	while (t.substring(t.length-1,t.length) == ' ') {
		t = t.substring(0,t.length-1);
	}
  
	return t;
}

function fnDisplayData(elmId, elmData) {
	document.getElementById(elmId).innerHTML = elmData;
}

function fnIsValidMsg(msg) {

	msg = msg.replace(/^\s+|\s+$/g,"");
	if(msg == "") {
		return false;
	}
	return true;
}

function fnSetFocus(elmId) {
	fnGetObj(elmId).focus();
}

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_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_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];}
}