var loadedjs = false;
var preloadFlag = false;

function plato(arg) {
  var rslt;
  if (document.getElementById) rslt = document.createElement('img');
  else rslt = new Image();
  rslt.src = arg;
  return rslt;
}

function changeImages() { 
  if (loadedjs && preloadFlag) { 
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
} 

function preloadImages() { 
  var imgFiles = preloadImages.arguments; 
  for (var i=0; i<imgFiles.length; i+=2) { 
    window[imgFiles[i]] = plato(imgFiles[i+1]);
    window[imgFiles[i]].src = imgFiles[i+1]; 
  } 
  preloadFlag = true; 
}

preloadImages('ptnsa_profile', 'images/topnav/self-assessment_profile_on.gif',
	      'ptnglobal_advice', 'images/topnav/global_advice_on.gif',
	      'ptnpeernotes', 'images/topnav/peernotes_on.gif',
	      'ptnpersonalize', 'images/topnav/personalize_on.gif',
	      'ptnresources', 'images/topnav/resources_on.gif'
	);
loadedjs = true;


function openWindow(imgName,wide,high){
	newWindow=window.open(imgName,'popupWin','toolbar=no,scrollbars=yes,menubar=no,resizable=yes')
	newWindow.resizeTo(wide,high)	
	newWindow.focus()
	}