if (document.images)
{
	// Left Nav Cases buttons.
	var home_off = new Image();
	home_off.src = "../images/cases/lnav/home_off.gif";
	var home_on = new Image();
	home_on.src = "../images/cases/lnav/home_on.gif";
	
	var profile_off = new Image();
	profile_off.src = "../images/cases/lnav/reg_off.gif";
	var profile_on = new Image();
	profile_on.src = "../images/cases/lnav/reg_on.gif";
	
	var intro_off = new Image();
	intro_off.src = "../images/cases/lnav/intro_off.gif";
	var intro_on = new Image();
	intro_on.src = "../images/cases/lnav/intro_on.gif";
	
	var apa_off = new Image();
	apa_off.src = "../images/cases/lnav/apa_off.gif";
	var apa_on = new Image();
	apa_on.src = "../images/cases/lnav/apa_on.gif";
	
	var mrsb_off = new Image();
	mrsb_off.src = "../images/cases/lnav/mrsb_off.gif";
	var mrsb_on = new Image();
	mrsb_on.src = "../images/cases/lnav/mrsb_on.gif";
	
	var mrc_off = new Image();
	mrc_off.src = "../images/cases/lnav/mrc_off.gif";
	var mrc_on = new Image();
	mrc_on.src = "../images/cases/lnav/mrc_on.gif";
	
	var mrw_off = new Image();
	mrw_off.src = "../images/cases/lnav/mrw_off.gif";
	var mrw_on = new Image();
	mrw_on.src = "../images/cases/lnav/mrw_on.gif";
	
	var mrsc_off = new Image();
	mrsc_off.src = "../images/cases/lnav/mrsc_off.gif";
	var mrsc_on = new Image();
	mrsc_on.src = "../images/cases/lnav/mrsc_on.gif";
	
	var cme_off = new Image();
	cme_off.src = "../images/cases/lnav/cme_off.gif";
	var cme_on = new Image();
	cme_on.src = "../images/cases/lnav/cme_on.gif";
	// End Left Nav Case Buttons.
	
	// Left Nav Home Buttons.
	var hm_home_off = new Image();
	hm_home_off.src = "../images/home/lnav/home_off.gif";
	var hm_home_on = new Image();
	hm_home_on.src = "../images/home/lnav/home_on.gif";
	
	var hm_profile_off = new Image();
	hm_profile_off.src = "../images/home/lnav/reg_off.gif";
	var hm_profile_on = new Image();
	hm_profile_on.src = "../images/home/lnav/reg_on.gif";
	
	var hm_intro_off = new Image();
	hm_intro_off.src = "../images/home/lnav/intro_off.gif";
	var hm_intro_on = new Image();
	hm_intro_on.src = "../images/home/lnav/intro_on.gif";
	
	var hm_apa_off = new Image();
	hm_apa_off.src = "../images/home/lnav/apa_off.gif";
	var hm_apa_on = new Image();
	hm_apa_on.src = "../images/home/lnav/apa_on.gif";
	
	var hm_cme_off = new Image();
	hm_cme_off.src = "../images/home/lnav/cme_off.gif";
	var hm_cme_on = new Image();
	hm_cme_on.src = "../images/home/lnav/cme_on.gif";	
	// End Left Nav Home Buttons.
	
	// Left Nav Admin Buttons.
	var ad_home_off = new Image();
	ad_home_off.src = "../images/admin/lnav/home_off.gif";
	var ad_home_on = new Image();
	ad_home_on.src = "../images/admin/lnav/home_on.gif";
	
	var ad_admin_off = new Image();
	ad_admin_off.src = "../images/admin/lnav/admin_off.gif";
	var ad_admin_on = new Image();
	ad_admin_on.src = "../images/admin/lnav/admin_on.gif";
	
	var ad_users_off = new Image();
	ad_users_off.src = "../images/admin/lnav/users_off.gif";
	var ad_users_on = new Image();
	ad_users_on.src = "../images/admin/lnav/users_on.gif";
	
	var ad_results_off = new Image();
	ad_results_off.src = "../images/admin/lnav/results_off.gif";
	var ad_results_on = new Image();
	ad_results_on.src = "../images/admin/lnav/results_on.gif";
	
	var ad_case_off = new Image();
	ad_case_off.src = "../images/admin/lnav/case_analysis_off.gif";
	var ad_case_on = new Image();
	ad_case_on.src = "../images/admin/lnav/case_analysis_on.gif";
	
	var ad_cme_off = new Image();
	ad_cme_off.src = "../images/admin/lnav/cme_analysis_off.gif";
	var ad_cme_on = new Image();
	ad_cme_on.src = "../images/admin/lnav/cme_analysis_on.gif";
	// End Left Nav Admin Buttons.
	
	// Left Nav CME Buttons.
	var cme_cme_off = new Image();
	cme_cme_off.src = "../images/cme/lnav/cme_cme_off.gif";
	var cme_cme_on = new Image();
	cme_cme_on.src = "../images/cme/lnav/cme_cme_on.gif";	
	
	var cme_audio_off = new Image();
	cme_audio_off.src = "../images/cme/lnav/cme_av_off.gif";
	var cme_audio_on = new Image();
	cme_audio_on.src = "../images/cme/lnav/cme_av_on.gif";
	
	var cme_pdf_off = new Image();
	cme_pdf_off.src = "../images/cme/lnav/cme_pdf_off.gif";
	var cme_pdf_on = new Image();
	cme_pdf_on.src = "../images/cme/lnav/cme_pdf_on.gif";
	
	var cme_test_off = new Image();
	cme_test_off.src = "../images/cme/lnav/cme_eval_off.gif";
	var cme_test_on = new Image();
	cme_test_on.src = "../images/cme/lnav/cme_eval_on.gif";
	// End Left Nav CME Buttons.
}

// Functions
// Mouseover code
function act(imgName, status) {
  if (document.images) 
    document[imgName].src = eval(imgName + "_on.src");
  if (status != '')
		window.status = status;
}
function inact(imgName) {
  if (document.images)
    document[imgName].src = eval(imgName + "_off.src");
  if (window.status != '')
		window.status = '';
}

// Pops up a new window.
function popupWindow(url, name, height, width, scrollbars, resizable)	
{
	var popwin;
	var opts = "toolbar=no,status=no,location=no,menubar=no";

	if((screen.height - 75) < height) height = screen.height - 75;
	// Calculate the position of the window (centered).
	var top, left;
	left = ((screen.width - width) / 2) - 20;
	top = ((screen.height - height) / 2) - 30;
		
	opts += ",resizable=" + resizable + ",height=" + height + ",width=" + width + ",scrollbars=" + scrollbars + ",left=" + left + ",top=" + top;
	popwin = window.open("", name, opts);
	popwin.focus();
	popwin.location = url;
}
// End Functions