/* 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 = "/images/nav/";

function preload() {
top_states_off = new Image;
top_states_off.src = navdir + "states.jpg";
top_states_on = new Image;
top_states_on.src = navdir + "states.jpg";

top_districts_off = new Image;
top_districts_off.src = navdir + "districts.jpg";
top_districts_on = new Image;
top_districts_on.src = navdir + "districts.jpg";

top_schools_off = new Image;
top_schools_off.src = navdir + "schools.jpg";
top_schools_on = new Image;
top_schools_on.src = navdir + "schools.jpg";

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;
 }
}


// mouse over (on) and mouseoff(off) color values
var oncolor1 = "#fedfd0";
var offcolor1 = "#ffb289";
function changecolor1(divname,colorname) {
stopall();
if (!n4) {
menuObj = eval(doc + divname + sty);
menuObj.backgroundColor = colorname;
  }
}

var oncolor2 = "#c0f4f2";
var offcolor2 = "#00d7cc";
function changecolor2(divname,colorname) {
stopall();
if (!n4) {
menuObj = eval(doc + divname + sty);
menuObj.backgroundColor = colorname;
  }
}

var oncolor3 = "#eae0eb";
var offcolor3 = "#d5c1dc";
function changecolor3(divname,colorname) {
stopall();
if (!n4) {
menuObj = eval(doc + divname + sty);
menuObj.backgroundColor = colorname;
  }
}



// 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_menuelem = 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_menuelem != null) {
  changecolor(active_menuelem,offcolor);
  }
}

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

// delay in miliseconds until the open menus are closed
var delay = 500;

// 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,menuelem) {
stopall();
closeallmenus();
if (submenu1 != null) {
  showhide(submenu1,'visible');
  active_submenu1 = submenu1;
  }
if (submenu2 != null) {
 showhide(submenu2,'visible');
 active_submenu2 = submenu2;
  }
if (menuelem != null) {
 changecolor(menuelem,oncolor);
 active_menuelem = menuelem;
 }
}


function initialize() {
preload();
closeallmenus();
stopall();
dimensions();
if (win_width < 770) {
// 80
// mainmenuleft = 165; // before 800x600 changes
mainmenuleft = 0;
 }
else {
// 50
mainmenuleft = centerhor - 230;
     }

var browser = new BrowserDetectLite();
var y_adjust=0;
var x_adjust=0;
if ( browser.isGecko ) {
	y_adjust=-0;	// -7
	x_adjust=0;
}
if ( browser.isOpera ) {
	y_adjust=+0;	// -7
	x_adjust=-2;
}

// adjusted -15 from earlier given topmargin=0

placeIt('states',x_adjust + 201, y_adjust + 59);
placeIt('districts',x_adjust + 201, y_adjust + 109);
placeIt('schools',x_adjust + 201, y_adjust + 159);
}