function trapEnterKey(btnID, event) {
  btn = findObj(btnID);
  if (document.all) {
    if (event.keyCode == 13) {
      event.returnValue = false;
      event.cancel = true;
      btn.click();
    }
  }
  else if (document.getElementById) {
    if (event.which == 13) {
      event.returnValue = false;
      event.cancel = true;
      btn.focus();
      btn.click();
    }
  }
  else if(document.layers) {
    if(event.which == 13) {
      event.returnValue = false;
      event.cancel = true;
      btn.focus();
      btn.click();
    }
  }
}

function findObj(n, d) { 
  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 && d.getElementById) {
    x=d.getElementById(n); 
  }
  return x;
}

function trapEnterKeyToRedirect(url, event) {
	if (document.all) {
		if (event.keyCode == 13) {
			event.returnValue = false;
			event.cancel = true;
			window.location.href=url;
		}
	}
	else if (document.getElementById) {
		if (event.which == 13) {
			event.returnValue = false;
			event.cancel = true;
			window.location.href=url;
		}
	}
	else if(document.layers) {
		if(event.which == 13) {
			event.returnValue = false;
			event.cancel = true;
			window.location.href=url;
		}
	}
}