var pageIndent =    "      "
var subPageIndent = "          "

var introSubMenu = new Array();
	introSubMenu.index =    "What's Perl";
	introSubMenu.tasks =    "Task Examples";
	introSubMenu.running =  "Running Perl";
	introSubMenu.vars =     "Variables";
	introSubMenu.flow =     "Flow Control";
	introSubMenu.examples = "Simple Scripts";

var matchingSubMenu = new Array();
	matchingSubMenu.index =        "Introduction";
	matchingSubMenu.binding =      "Binding Op";
	matchingSubMenu.expressions =  "Reg Expressions";
	matchingSubMenu.examples =     "Examples";
	matchingSubMenu.substitution = "Substitution";
	matchingSubMenu.advanced =     "Advanced Ideas";

var functionsSubMenu = new Array();
	functionsSubMenu.index =  "Introduction";
	functionsSubMenu.string = "Str Functions";
	functionsSubMenu.test =   "Test Functions";
	functionsSubMenu.user =   "User Functions";

var filesSubMenu = new Array();
	filesSubMenu.index =       "IO Introduction";
	filesSubMenu.stdoutput =   "STDOUT";
	filesSubMenu.writing =     "Writing Files";
	filesSubMenu.stdinput =    "STDIN";
	filesSubMenu.reading =     "Reading Files";
	filesSubMenu.directories = "Reading Dirs";
	filesSubMenu.editing =     "Editing Files";
	filesSubMenu.recursive =   "Recursive Edits";

var cgi_introSubMenu = new Array();
	cgi_introSubMenu.index =    "Intro to CGI";
	cgi_introSubMenu.first =    "First Page";
	cgi_introSubMenu.printing = "Printing HTML";
	cgi_introSubMenu.serving =  "Serving HTML";
	cgi_introSubMenu.editing =  "Serving Edited";

var cgi_moduleSubMenu = new Array();
	cgi_moduleSubMenu.index =        "Intro to GET";
	cgi_moduleSubMenu.cgimodule =    "CGI Module";
	cgi_moduleSubMenu.handling =     "Handling Forms";
	cgi_moduleSubMenu.form_errors =  "Form Errors";
	cgi_moduleSubMenu.fatal_errors = "Fatal Errors";

var cgi_useSubMenu = new Array();
	cgi_useSubMenu.index =     "CGI In Use";
	cgi_useSubMenu.search =    "Site Search";
	cgi_useSubMenu.database =  "Presenting Data";
	cgi_useSubMenu.cookies =   "Cookies";
	cgi_useSubMenu.uploading = "Uploading Files";
	cgi_useSubMenu.requests =  "Requesting Info";

function writeSubMenu(selectedMenu) {

	var subMenu = Array();
	
	subMenu = eval(selectedMenu + "SubMenu");
	
	var i = 0;
	for ( key in subMenu ) {
		i = i + 1;
				
		if ( document.location.pathname.match(key)  == key) {
			document.write("<font color=\"red\">" + subPageIndent + String(i) + "." + subMenu[key] + "</font><BR>")
		} else {
			document.write(subPageIndent + String(i) + ".<a href=\"/course\/" + selectedMenu + "\/" + key + ".html\" class=\"nav\">" + subMenu[key] + "<\/a><BR>")
		}
	}
}