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 chngbg(obj) {
          obj.style.backgroundImage = 'url(images/bg_nav.gif)';
        }
function chngbg2(obj) {
            obj.style.backgroundImage = 'url(images/bg_nav_over.gif)';
        }

function tblswap(obj) {
    obj.style.backgroundImage = 'url(images/bg_nav_over.gif)';

}
function tblswapreturn(obj) {
    obj.style.backgroundImage = 'url(images/bg_nav.gif)';
	
}
	

function checkname ()
{

  if (document.forms.emaillist.realname.value != "") {

  	document.images.namecheck.src = 'images/check_on.gif';
	
  }

  return true ;
}



function formchecker ()
{

var errormsg = ""
if (document.forms.emaillist.realname.value == "")
{
errormsg = errormsg + 'Please enter your name.\n';

}

if (document.forms.emaillist.email.value == "")
{
errormsg = errormsg + 'Please enter your email address.\n';

}
	
if (errormsg != "") {
alert(errormsg);
return false;
}
else {
alert('Thank you for joining our mailing list');

}
return true;
}

function checkmail(strng) {

var emailerror = "";
var emailFilter=/^.+@.+\..{2,3}$/;

if (!(emailFilter.test(strng))) { 
       emailerror = "Please enter a valid email address.\n";
}

var illegalChars= /[\(\)\<\>\,\;\:\\\/\"\[\]]/
if (strng.match(illegalChars)) {
   emailerror = "The email address contains illegal characters.\n";
}

if (emailerror != "") {
alert(emailerror);
return false;
}
else {
document.images.emailcheck.src = 'images/check_on.gif';
}

return true;

}

MM_preloadImages('images/nav_over_03.gif','images/nav_over_05.gif','images/nav_over_07.gif','images/nav_over_09.gif','images/nav_over_11.gif','images/nav_over_13.gif','images/nav_over_01.gif','images/bg_nav_over.gif');