<!--

var Lst;
function CngClass(obj){
 document.getElementById('start').className='';
 if (Lst) Lst.className='';
 obj.className='active';
 Lst=obj;
}

function findObj(n, d) { //v4.0
  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=findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function swapImage() { //v3.0
  var i,j=0,x,a=swapImage.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=findObj(a[i]))!=null){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function checkForm(myForm)
  {
    if(myForm.realname.value == "") {
       alert("Please fill in your name.");
       return false;
    }
    if(!/^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/.test(myForm.email.value)) {
       alert("Please enter a valid email address.");
       return false;
    }
    if(myForm.comments.value == "") {
       alert("Please type your message.");
       return false;
    }
    if(myForm.human.value != "") {
       return false;
    }
  return true;
  }

function checkLogin(myLogin)
  {
    if(myLogin.username.value == "") {
       alert("Please fill in your username.");
       return false;
    }
    if(myLogin.password.value == "") {
       alert("Please type your password.");
       return false;
    }
  return true;
  }

// -->