//these are all the javascript functions

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 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) { //v3.0
  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); 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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

//any JavaScript that need to be initialised onLoad
function init(){
	return true;
}

function checkForm(){

	var error = "";

	if (document.forms.joinML.firstName.value == "") error += "Add your first name\n";

	if (document.forms.joinML.email.value == "") error += "Add your email address\n";
	if ((document.forms.joinML.email.value.indexOf ('@',0) == -1 ||
		document.forms.joinML.email.value.indexOf ('.',0) == -1) &&
		document.forms.joinML.email.value != "")
		{
		error += "Check Your email address\n";
	}

	if (error != ""){
		error = "Please check to following errors:\n\n" + error;
		alert(error);
		} else {
		document.forms.joinML.submit();
	}
}

//checks to see if one of the radio buttons is selected
//alerts if no button is selected or submits if there is
function checkVote(){
	
	var checked = 0;
	
	//the radio button is a grouped object and is accessible through an array
	//this steps through and assigns a value of 1 if any button is checked
	for (i=0, n=document.forms.vote.vote.length; i<n; i++) {
	   	if (document.forms.vote.vote[i].checked){
		   	checked = 1;
		   	break;
		}
	}
	
	if (checked == 0) alert ("Please select an option!");
	else document.forms.vote.submit();
}

//check the 'email this page' form
function checkEmailForm(){

	var error = "";

	if (document.forms.sendEmail.fromName.value == "") error += "Add your name\n";

	if (document.forms.sendEmail.fromEmail.value == "") error += "Add your email address\n";
	if ((document.forms.sendEmail.fromEmail.value.indexOf ('@',0) == -1 ||
		document.forms.sendEmail.fromEmail.value.indexOf ('.',0) == -1) &&
		document.forms.sendEmail.fromEmail.value != "")
		{
		error += "Check Your email address\n";
	}

	if (document.forms.sendEmail.targetName.value == "") error += "Add your friend's name\n";

	if (document.forms.sendEmail.targetEmail.value == "") error += "Add your friend's address\n";
	if ((document.forms.sendEmail.targetEmail.value.indexOf ('@',0) == -1 ||
		document.forms.sendEmail.targetEmail.value.indexOf ('.',0) == -1) &&
		document.forms.sendEmail.targetEmail.value != "")
		{
		error += "Check your friend's email address\n";
	}

	if (error != ""){
		error = "Please check the following:\n\n" + error;
		alert(error);
		} else {

		document.forms.sendEmail.submit();
	}
}

//send this page as email window opener
function openEmailWindow(pageUrl) {
  window.open('/features/email_page/index.php?pageUrl='+pageUrl,'sendEmail','status=yes,scrollbars=yes,resizable=yes,width=400,height=415');
}