/* 
  swap images by placing off/on flags according to what reference is passed 0/1 
*/
function rollOver(imageName, ref){
  var imageName, ref;
	var image_obj;
	
	image_obj = eval("document." + imageName);
	
	switch (ref){
	  case 1: image_obj.src = eval(imageName + "_on"+ ".src"); break;
	  case 0: image_obj.src = eval(imageName + "_off" + ".src"); break;
	  default: // do nothing here . . . . 
	}
}

/*
  check browser type and  . . .
*/
function checkBrowserType(){
  var browserType ;
  browserType = (document.all) ? 'IE' : 'NE';
}

/*
  pop up a new browser window
*/
function popUp(url, name, options){
  newwindow=window.open(url, name, options);
  if (window.focus) {newwindow.focus()}
  return false; 
}

/*
  write on the window status bar
*/
function writeStatus(strMsg){
  window.status = strMsg;
}