/* define variables for "if n4 (Netscape 4), if IE (IE 4.x), 
and if n6 (if Netscape 6/W3C-DOM compliant)" */

var n4, ie, n6;

/* detecting browser support for certain key objects/methods and 
assembling a custom document object */


var doc,doc2,doc3,sty;

if (document.layers) {
  doc = "document.";
  doc2 = ".document.";
  doc3 = "";
  sty = "";
  n4 = true;
  }
else if (document.all) {
  doc = "document.all.";
  doc2 = "";
  doc3 = "";
  sty = ".style";
  ie = true;
}

else if (document.getElementById) {
  doc = "document.getElementById('";
  doc2 ="')";
  doc3 ="')";
  sty = "').style";
  n6 = "true";
 } 
 
 
// the variables for the window dimensions
var win_width,win_height;
var centerhor, centerver;


//Get dimensions of the window
function dimensions() {
if(n4 || n6){
 win_width=window.innerWidth;
 win_height=window.innerHeight;
}

else if(ie) {
  win_width=document.body.clientWidth;
  win_height=document.body.clientHeight;
     }

centerhor = win_width/2;
centerver = win_height/2;
}


//position the element on the page.

function placeIt(elem,leftPos,topPos) {
docObj = eval(doc + elem + sty);
if (n4 || n6) {
docObj.left = leftPos;
docObj.top= topPos;
 }
if (ie) {
docObj.pixelLeft = leftPos;
docObj.pixelTop = topPos;
 }
}

// preload navigation images

var loaded = 0;
var navdir = "gfx/";

function preload() {

currentprojects_off=new Image;
currentprojects_off.src= navdir + "currentprojects_off.gif"
currentprojects_on=new Image;
currentprojects_on.src=navdir + "currentprojects_on.gif"

directing_off = new Image;
directing_off.src = navdir + "directing_off.gif";
directing_on = new Image;
directing_on.src = navdir + "directing_on.gif";

writing_off = new Image;
writing_off.src = navdir + "writing_off.gif";
writing_on = new Image;
writing_on.src = navdir + "writing_on.gif";

art_off = new Image;
art_off.src = navdir + "art_off.gif";
art_on = new Image;
art_on.src = navdir + "art_on.gif";

resume_off = new Image;
resume_off.src = navdir + "resume_off.gif";
resume_on = new Image;
resume_on.src = navdir + "resume_on.gif";

contact_off = new Image;
contact_off.src = navdir + "contact_off.gif";
contact_on = new Image;
contact_on.src = navdir + "contact_on.gif";

subfilm_off  = new Image;
subfilm_off.src = navdir + "subfilm_off.gif";
subfilm_on = new Image;
subfilm_on.src = navdir + "subfilm_on.gif";

subtheater_off  = new Image;
subtheater_off.src = navdir + "subtheater_off.gif";
subtheater_on = new Image;
subtheater_on.src = navdir + "subtheater_on.gif";

subfilm2_off  = new Image;
subfilm2_off.src = navdir + "subfilm_off.gif";
subfilm2_on = new Image;
subfilm2_on.src = navdir + "subfilm_on.gif";

subtheater2_off  = new Image;
subtheater2_off.src = navdir + "subtheater_off.gif";
subtheater2_on = new Image;
subtheater2_on.src = navdir + "subtheater_on.gif";

subtelevision_off  = new Image;
subtelevision_off.src = navdir + "subtelevision_off.gif";
subtelevision_on = new Image;
subtelevision_on.src = navdir + "subtelevision_on.gif";

subprose_off  = new Image;
subprose_off.src = navdir + "subprose_off.gif";
subprose_on = new Image;
subprose_on.src = navdir + "subprose_on.gif";

subphoto_off  = new Image;
subphoto_off.src = navdir + "subphoto_off.gif";
subphoto_on = new Image;
subphoto_on.src = navdir + "subphoto_on.gif";

subpaint_off  = new Image;
subpaint_off.src = navdir + "subpaint_off.gif";
subpaint_on = new Image;
subpaint_on.src = navdir + "subpaint_on.gif";

loaded = 1;

}

// img src swap function
function onoff (elemparent,elem,state) {
if (loaded) {
newstate = eval(elem+"_"+state);
if (n4) {
menuObj = eval (doc + elemparent + doc2 + elem);
 }
else if (ie || n6) {
menuObj = eval (doc + elem + doc2);
 }
menuObj.src = newstate.src;
 }
}


// submenu mouseovers
function changecolor (elemparent, elem, state) {
stopall();
if (loaded) { 
//statechange = eval(elemparent + elem+"_"+state);
statechange = eval(elem+"_"+state);
if (n4) {
//
// Works with N4???
//
 submenuObj = eval (doc + elemparent + doc2 + elem);
  }
 else if (ie || n6) {
submenuObj = eval (doc + elem + doc2);
  }
submenuObj.src = statechange.src;
 }
}

// show or hide DIV element
function showhide(divname,state) {
if (n4) {
divObj = eval (doc + divname);
 }
else {
divObj = eval (doc + divname + sty);
}
divObj.visibility = state;
}


// variables that hold the value of the currently active (open) menu
var active_submenu1 = null;
var active_submenu2 = null;
var active_submenu3 = null;
var active_menuelem = null;
var active_topelem = null;

// function closes all active menus and turns back to 'off' state
function closeallmenus() {
if(active_submenu1 != null) {
  showhide(active_submenu1,'hidden');
  }
if(active_submenu2 != null) {
  showhide(active_submenu2,'hidden');
  }
if(active_submenu3 != null) {
  showhide(active_submenu3,'hidden');
  }
if(active_menuelem != null) {
  changecolor(active_menuelem,offcolor);
  }
if(active_topelem != null) {
  onoff('menu',active_topelem,'off');
  }
}

// the menu close timeout variable
var menu_close_timeout = 0;

// delay in miliseconds until the open menus are closed
var delay = 300;

// function calls the closeallmenus() function after a delay
function closeall() {
menu_close_timeout = setTimeout('closeallmenus()',delay);
}

// stop all timeout functions (stops menus from closing)
function stopall() {
clearTimeout(menu_close_timeout);
}

// function controls submenus 
function controlsubmenu(submenu1,submenu2,submenu3,menuelem,topelem) {
stopall();
closeallmenus();
if (submenu1 != null) {
  showhide(submenu1,'visible');
  active_submenu1 = submenu1;
  }
if (submenu2 != null) {
 showhide(submenu2,'visible');
 active_submenu2 = submenu2;
  }
if (submenu3 != null) {
 showhide(submenu3,'visible');
 active_submenu3 = submenu3;
  }
if (menuelem != null) {
 onoff('subm',menuelem,'on');
 active_menuelem = menuelem;
 }
if (topelem != null) {
 onoff('menu',topelem,'on');
 active_topelem = topelem;
 }
}


function initialize() {
preload();
closeallmenus();
stopall();
dimensions();
if (win_width < 800) {
menuleft = centerhor - 400;
 }
else {
menuleft = centerhor - 400;
     }
placeIt('menu',menuleft,0);
placeIt('submenu1',menuleft + 206,49);
placeIt('submenu2',menuleft + 311,49);
placeIt('submenu3',menuleft + 402,49);
}