var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);

function getRef(id) {
   if (isDOM) return document.getElementById(id);
   if (isIE4) return document.all[id];
   if (isNS4) return document.layers[id];
}

function getSty(id) {
   return (isNS4 ? getRef(id) : getRef(id).style);
} 


var popTimer = 0;
var litNow = new Array();

function popOver(menuNum, itemNum) {
   clearTimeout(popTimer);
   hideAllBut(menuNum);
   litNow = getTree(menuNum, itemNum);
   changeCol(litNow, true);
   targetNum = menu[menuNum][itemNum].target;
   if (targetNum > 0) {
      thisX = parseInt(menu[menuNum][0].ref.left) + parseInt(menu[menuNum][itemNum].ref.left);
      thisY = parseInt(menu[menuNum][0].ref.top) + parseInt(menu[menuNum][itemNum].ref.top);
      with (menu[targetNum][0].ref) {
         left = parseInt(thisX + menu[targetNum][0].x);
         top = parseInt(thisY + menu[targetNum][0].y);
         visibility = 'visible';
      }
   }
}

function popOut(menuNum, itemNum) {
   if ((menuNum == 0) && !menu[menuNum][itemNum].target)
      hideAllBut(0)
   else
      popTimer = setTimeout('hideAllBut(0)', 500);
}

function getTree(menuNum, itemNum) {
   itemArray = new Array(menu.length);
   while(1) {
      itemArray[menuNum] = itemNum;
      if (menuNum == 0) return itemArray;
      itemNum = menu[menuNum][0].parentItem;
      menuNum = menu[menuNum][0].parentMenu;
   }
}

function changeCol(changeArray, isOver) {
   for (menuCount = 0; menuCount < changeArray.length; menuCount++) {
      if (changeArray[menuCount]) {
         newCol = isOver ? menu[menuCount][0].overCol : menu[menuCount][0].backCol;
         with (menu[menuCount][changeArray[menuCount]].ref) {
            if (isNS4) bgColor = newCol;
            else backgroundColor = newCol;
         }
      }
   }
}

function hideAllBut(menuNum) {
   var keepMenus = getTree(menuNum, 1);
   for (count = 0; count < menu.length; count++)
      if (!keepMenus[count])
         menu[count][0].ref.visibility = 'hidden';
         changeCol(litNow, false);
}

function Menu(isVert, popInd, x, y, width, overCol, backCol, borderClass, textClass) {
   this.isVert = isVert;
   this.popInd = popInd
   this.x = x;
   this.y = y;
   this.width = width;
   this.overCol = overCol;
   this.backCol = backCol;
   this.borderClass = borderClass;
   this.textClass = textClass;
   this.parentMenu = null;
   this.parentItem = null;
   this.ref = null;
}

function Item(text, href, frame, length, spacing, target) {
   this.text = text;
   this.href = href;
   this.frame = frame;
   this.length = length;
   this.spacing = spacing;
   this.target = target;
   this.ref = null;
}

function writeMenus() {
   if (!isDOM && !isIE4 && !isNS4) return;

   for (currMenu = 0; currMenu < menu.length; currMenu++) with (menu[currMenu][0]) {
      var str = '', itemX = 0, itemY = 0;

   for (currItem = 1; currItem < menu[currMenu].length; currItem++) with (menu[currMenu][currItem]) {
      var itemID = 'menu' + currMenu + 'item' + currItem;

   var w = (isVert ? width : length);
   var h = (isVert ? length : width);

   if (isDOM || isIE4) {
      str += '<div id="' + itemID + '" style="position: absolute; left: ' + itemX + '; top: ' + itemY + '; width: ' + w + '; height: ' + h + '; visibility: inherit; ';
      if (backCol) str += 'background: ' + backCol + '; ';
      str += '" ';
   }
   
   if (isNS4) {
      str += '<layer id="' + itemID + '" left="' + itemX + '" top="' + itemY + '" width="' +  w + '" height="' + h + '" visibility="inherit" ';
      if (backCol) str += 'bgcolor="' + backCol + '" ';
   }
   
   if (borderClass) str += 'class="' + borderClass + '" ';

   str += 'onMouseOver="popOver(' + currMenu + ',' + currItem + ')" onMouseOut="popOut(' + currMenu + ',' + currItem + ')">';
   str += '<table width="' + (w - 8) + '" border="0" cellspacing="0" cellpadding="' + (!isNS4 && borderClass ? 3 : 0) + '"><tr><td align="left" height="' + (h - 7) + '">' + '<a class="' + textClass + '" href="' + href + '"' + (frame ? ' target="' + frame + '">' : '>') + text + '</a></td>';

   if (target > 0) {
      menu[target][0].parentMenu = currMenu;
      menu[target][0].parentItem = currItem;
      if (popInd) str += '<td class="' + textClass + '" align="right">' + popInd + '</td>';
   }
   
   str += '</tr></table>' + (isNS4 ? '</layer>' : '</div>');

   if (isVert) itemY += length + spacing;
   else itemX += length + spacing;
}

if (isDOM) {
   var newDiv = document.createElement('div');
   document.getElementsByTagName('body').item(0).appendChild(newDiv);
   newDiv.innerHTML = str;
   ref = newDiv.style;
   ref.position = 'absolute';
   ref.visibility = 'hidden';
}

if (isIE4) {
   document.body.insertAdjacentHTML('beforeEnd', '<div id="menu' + currMenu + 'div" ' + 'style="position: absolute; visibility: hidden">' + str + '</div>');
   ref = getSty('menu' + currMenu + 'div');
}

if (isNS4) {
   ref = new Layer(0);
   ref.document.write(str);
   ref.document.close();
}

for (currItem = 1; currItem < menu[currMenu].length; currItem++) {
   itemName = 'menu' + currMenu + 'item' + currItem;
   if (isDOM || isIE4) menu[currMenu][currItem].ref = getSty(itemName);
   if (isNS4) menu[currMenu][currItem].ref = ref.document[itemName];
   }
}
with(menu[0][0]) {
   ref.left = x;
   ref.top = y;
   ref.visibility = 'visible';
   }
}


var menu = new Array();
var defOver = '#336699', defBack = '#003366';
var defLength = 22;

// Menu 0 is the special, 'root' menu from which everything else arises.
menu[0] = new Array();
menu[0][0] = new Menu(false, '', 0, 75, 23, '#90B8D0', '#00619E', '', 'menuText');
menu[0][1] = new Item('<img src="images/1button.jpg" name="product" width="105" height="23" border="0">', 'index.htm', '', 103, 0, 1);
menu[0][2] = new Item('<img src="images/4button.jpg" name="clientarea" width="105" height="23" border="0">', 'home1.htm', '', 105, 0, 2);
menu[0][3] = new Item('<img src="images/2button.jpg" name="download" width="105" height="23" border="0">', '#', '', 105, 0, 3);
menu[0][4] = new Item('<img src="images/3button.jpg" name="purchase" width="105" height="23" border="0">', '#', '', 105, 0, 4);
menu[0][5] = new Item('<img src="images/5button.jpg" name="support" width="105" height="23" border="0">', 'download1.htm', '', 105, 0, 5);
menu[0][6] = new Item('<img src="images/6button.jpg" name="contact" width="105" height="23" border="0">', '#', '', 105, 0, 6);
menu[0][7] = new Item('<img src="images/7button.jpg" name="hippa" width="105" height="23" border="0">', '#', '', 105, 0, 7);

// Product menu.
menu[1] = new Array();
menu[1][0] = new Menu(true, '>', 0, 22, 105, defOver, defBack, 'menuBorder', 'menuText2');

// Sitemap menu.
menu[2] = new Array();
menu[2][0] = new Menu(true, '>', 0, 22, 180, defOver, defBack, 'menuBorder', 'menuText2');


// Download menu
menu[3] = new Array();
menu[3][0] = new Menu(true, '>', 0, 22, 180, defOver, defBack, 'menuBorder', 'menuText2');
menu[3][1] = new Item('DentalMate', 'product1.htm', '', defLength, 0, 0);
menu[3][2] = new Item('Charting', 'restorative.htm', '', defLength, 0, 0);
menu[3][3] = new Item('Electronic Services', 'eservices.htm', '', defLength, 0, 0);
menu[3][4] = new Item('EasyScan', 'easyscan.htm', '', defLength, 0, 0);
menu[3][5] = new Item('DentForms', 'dentforms.htm', '', defLength, 0, 0);

//menu[3][3] = new Item('Coming Attractions', 'product4.htm', '', defLength, 0, 0);SED Removed

// Purchase menu, Added Technical tips to menu SED 02/18/04
menu[4] = new Array();
menu[4][0] = new Menu(true, '>', 0, 22, 180, defOver, defBack, 'menuBorder', 'menuText2');
menu[4][1] = new Item('Training/Support Plans', 'support1.htm', '', defLength, 0, 0);
menu[4][2] = new Item('System Requirements', 'support2.htm', '', defLength, 0, 0);
menu[4][3] = new Item('Hardware Setup Guide', 'support3.htm', '', defLength, 0, 0);
menu[4][4] = new Item('Technical Tips', 'support4.htm', '',defLength, 0, 0);

// Client menu
menu[5] = new Array();
menu[5][0] = new Menu(true, '>', 0, 22, 180,defOver, defBack, 'menuBorder', 'menuText2');

// Contact menu
menu[6] = new Array();
menu[6][0] = new Menu(true, '>', 0, 22, 180, defOver, defBack, 'menuBorder', 'menuText2');
//menu[6][1] = new Item('VantageMed Website', 'http://www.vantagemed.com', 'target="_blank"', defLength, 0, 0);
menu[6][1] = new Item('Contact Information', 'company2.htm', '', defLength, 0, 0);
//menu[6][3] = new Item('News Releases', 'company4.htm', '', defLength, 0, 0);
menu[6][2] = new Item('Integration Partners', 'partnerintegration.htm', '', defLength, 0, 0);

// Hippa menu
menu[7] = new Array();
menu[7][0] = new Menu(true, '>', 0, 22, 105, defOver, defBack, 'menuBorder', 'menuText2');
menu[7][1] = new Item('ADA', 'http://www.ada.org/prof/resources/topics/hipaa/index.asp', 'target="_blank"', defLength, 0, 0);
//menu[7][2] = new Item('VantageMed', 'http://www.vantagemed.com/hipaa.htm', 'target="_blank"', defLength, 0, 0);

// These two lines handle the window resize bug in NS4.
var popOldWidth = window.innerWidth;
nsResizeHandler = new Function('if (popOldWidth != window.innerWidth) location.reload()');



onload = writeMenus;