function doJoin() {
//	if (document.getElementById("frmJoin").isValid && chkFormular()){
		document.getElementById("frmJoin").submit();
//	}else{
//		window.alert ("Please fill in all fields correctly.");
//	}
}

/**
 * register Enter key for form submission
 */
function prepareJoin(event) {
	if(!event) event = window.event;
	
	var keyPressed = event.keyCode;
	
	if(!keyPressed || keyPressed == null) keyPressed = event.which; 
	
	if(keyPressed == 13) {
		doJoin();
	}
}


function chkFormular() {
    if ( document.frmJoin.password.value != document.frmJoin.password2.value) {
      window.alert('Password and Re-enter password must be the same!');
      return false;
    }
    if ( document.frmJoin.username.value != '' && document.frmJoin.password.value != ''  && document.frmJoin.password2.value != '' && document.frmJoin.mail.value != '' && document.frmJoin.zip.value != '' && document.frmJoin.town.value != '') {
     return true;
    } else {
      window.alert('You have to fill every field!');
      return false;
    }
  }