function help_page() {

// set up 2 variables for each help file
var admin_help = '<a href="admin_help.htm" target="_blank" class="help">Need Help?</a>';
var owner_help = '<a href="owner_help.htm" target="_blank" class="help">NEED HELP?</a>';


var regex_admin = /adminmenu.php|admin_by_month.php|2_month_summary.php|amendcalendar.php/;

	// test to see if the current web page matches
	// one of the admin pages, and if so print out 
	// the admin help page link 
	if (regex_admin.test(window.location.pathname) == true)
	{
		document.write(admin_help);
		return;
	}

var regex_owner = /menu.php|availability.php/;

	// test to see if the current web page matches
	// one of the owner pages, and if so print out 
	// the owner help page link 
	if (regex_owner.test(window.location.pathname) == true)
	{
		document.write(owner_help);
	}

}

help_page();

<!--
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
} 
//-->