//----------------------------------------------------------------------------
// Code to determine the browser and version.
//----------------------------------------------------------------------------

function Browser() {

	//alert ("Enter Browser");
	var ua, s, i;

	this.IE    = false;  // Internet Explorer
	this.OP    = false;  // Opera
	this.NS    = false;  // Netscape
	this.FX	   = false;	 // Firefox;	
	this.version = null;

	ua = navigator.userAgent;
	//alert ("userAgent=" + ua );
	
	// first things first..
	// FREAKIN ORDER IS FREAKIN IMPORTANT!!!  SEE userAgent to understand! 
	
	s = "Firefox";
		if ((i = ua.indexOf(s)) >= 0) {
			this.FX = true;
			this.version = parseFloat(ua.substr(i + s.length));
			//alert ("Browser : Case Firefox");
	
			//alert ("Detected Firefox" + this.version);
			return;
	}
	
	s = "MSIE";
	if ((i = ua.indexOf(s))) {
		this.IE = true;
		this.version = parseFloat(ua.substr(i + s.length));
		//alert ("Browser : Case MSIE");
		return;
	}

	s = "Opera";
	if ((i = ua.indexOf(s)) >= 0) {
		this.OP = true;
		this.version = parseFloat(ua.substr(i + s.length));
		//alert ("Browser : Case Opera");

		return;
	}

	// "Gecko" is a browser engine dev by Netscape 
	
	// Check first this then other "Gecko"s browsers
	//
	s = "Netscape6/";
	if ((i = ua.indexOf(s)) >= 0) {
		this.NS = true;
		this.version = parseFloat(ua.substr(i + s.length));
		//alert ("Browser : Case Netscape");

		return;
	}

	//  All other "Gecko" browser as SAFARI , Netscape 6.1.
	s = "Gecko";
	if ((i = ua.indexOf(s)) >= 0) {
		this.NS = true;
		this.version = 6.1;
		//alert ("Browser : Case Gecko");

		return;
	}
	
	//alert ("Browser : Case FUCK NONE!");

}

// Will be used for checks
var browser = new Browser();

//----------------------------------------------------------------------------
// Code for handling the menu bar and active button.
//----------------------------------------------------------------------------

var activeButton = null;


function buttonClick(event, menuId) {

	//alert("ENter - buttonClick");
  	var button;

  	// Get the target button element.

  	if (browser.IE)
  	  button = window.event.srcElement;
  	else
  	  button = event.currentTarget;

  	// Blur focus from the link to remove that annoying outline.

  	button.blur();  // push back or to front an item .. opposite is focus()
  	//alert("BLURRED -"+ button.className + "-");

  	// Associate the named menu to this button if not already done.
  	// Additionally, initialize menu display.

  	if (button.menu == null) {
  		button.menu = document.getElementById(menuId);
    	if (button.menu.isInitialized == null)
    		menuInit(button.menu);
  	}


  	if (button.onmouseout == null)
  	  button.onmouseout = buttonOrMenuMouseout;

  	// Exit if this button is the currently active one.

  	if (button == activeButton)
  	  return false;

  	// Reset the currently active button, if any.

  	if (activeButton != null)
  	  resetButton(activeButton);

	// Activate this button, unless it was the currently active one.

  	if (button != activeButton) {
  	  depressButton(button);
  	  activeButton = button;
  	}
  	else
  	  activeButton = null;

  	return false;
}





function buttonMouseover(event, menuId) {

	var button;
	//alert("ENter :: buttonMouseover");

	if (activeButton == null) {
		buttonClick(event, menuId);
	    return;
	}

	// Find the target button element.

  	if (browser.IE)
  		button = window.event.srcElement;
  	else
    	button = event.currentTarget;

  	// If any other button menu is active, make this one active instead.

  	if (activeButton != null && activeButton != button)
  		buttonClick(event, menuId);
}





function depressButton(button) {

	var x, y;

	// Update the button's style class to make it look like it's
	// depressed.

	button.className += " menuButtonActive";

	//alert("ENter :: depressButton");

	// Set mouseout event handler for the button, if not already done.

	if (button.onmouseout == null)
    	button.onmouseout = buttonOrMenuMouseout;
    if (button.menu.onmouseout == null)
    	button.menu.onmouseout = buttonOrMenuMouseout;

	// Position the associated drop down menu under the button and
	// show it.

	x = getPageOffsetLeft(button);
	y = getPageOffsetTop(button) + button.offsetHeight;

	// For IE, adjust position.

	if (browser.IE) {
  
  		//alert("depressButton:: Positioning for IE");
  
  
		x += button.offsetParent.clientLeft;
		y += button.offsetParent.clientTop;
	}

	button.menu.style.left = x + "px";
	button.menu.style.top  = y + "px";
	button.menu.style.visibility = "visible";

	// For IE; size, position and show the menu's IFRAME as well.

	if (button.menu.iframeEl != null)
	{
		button.menu.iframeEl.style.left = button.menu.style.left;
		button.menu.iframeEl.style.top  = button.menu.style.top;
		button.menu.iframeEl.style.width  = button.menu.offsetWidth + "px";
		button.menu.iframeEl.style.height = button.menu.offsetHeight + "px";
		button.menu.iframeEl.style.display = "";
	}
}





function resetButton(button) {

	//alert("resetButton:: Enter");

	removeClassName(button, "menuButtonActive");

	// Hide the button's menu, first closing any sub menus.

	if (button.menu != null) {
		closeSubMenu(button.menu);
		button.menu.style.visibility = "hidden";

		// For IE, hide menu's IFRAME as well.

		if (button.menu.iframeEl != null)
		  button.menu.iframeEl.style.display = "none";
	}
}

//----------------------------------------------------------------------------
// Code to handle the menus and sub menus.
//----------------------------------------------------------------------------

function menuMouseover(event) {

	//alert("menuMouseover:: Enter");

	var menu;

	// Find target menu element.

	if (browser.IE)
    	menu = getContainerWith(window.event.srcElement, "DIV", "menu");
  	else
    	menu = event.currentTarget;

  	// Close any active sub menu.

  	if (menu.activeItem != null)
    	closeSubMenu(menu);
}






function menuItemMouseover(event, menuId) {

  var item, menu, x, y;

	//alert("menuItemMouseover:: Enter");

  // Find the target item element and its parent menu element.

  if (browser.IE)
    item = getContainerWith(window.event.srcElement, "A", "menuItem");
  else
    item = event.currentTarget;
  menu = getContainerWith(item, "DIV", "menu");

  // Close any active sub menu and mark this one as active.

  if (menu.activeItem != null)
    closeSubMenu(menu);
  menu.activeItem = item;

  // Highlight the item element.

  item.className += " menuItemHighlight";

  // Initialize the sub menu, if not already done.

  if (item.subMenu == null) {
    item.subMenu = document.getElementById(menuId);
    if (item.subMenu.isInitialized == null)
      menuInit(item.subMenu);
  }

  // Set mouseout event handler for the sub menu, if not already done.

  if (item.subMenu.onmouseout == null)
    item.subMenu.onmouseout = buttonOrMenuMouseout;

  // Get position for submenu based on the menu item.

  x = getPageOffsetLeft(item) + item.offsetWidth;
  y = getPageOffsetTop(item);

  // Adjust position to fit in view.

  var maxX, maxY;

  if (browser.IE) {
    maxX = Math.max(document.documentElement.scrollLeft, document.body.scrollLeft) +
      (document.documentElement.clientWidth != 0 ? document.documentElement.clientWidth : document.body.clientWidth);
    maxY = Math.max(document.documentElement.scrollTop, document.body.scrollTop) +
      (document.documentElement.clientHeight != 0 ? document.documentElement.clientHeight : document.body.clientHeight);
  }
  if (browser.OP) {
    maxX = document.documentElement.scrollLeft + window.innerWidth;
    maxY = document.documentElement.scrollTop  + window.innerHeight;
  }
  if (browser.NS) {
    maxX = window.scrollX + window.innerWidth;
    maxY = window.scrollY + window.innerHeight;
  }
  maxX -= item.subMenu.offsetWidth;
  maxY -= item.subMenu.offsetHeight;

  if (x > maxX)
    x = Math.max(0, x - item.offsetWidth - item.subMenu.offsetWidth
      + (menu.offsetWidth - item.offsetWidth));
  y = Math.max(0, Math.min(y, maxY));

  // Position and show the sub menu.

  item.subMenu.style.left       = x + "px";
  item.subMenu.style.top        = y + "px";
  item.subMenu.style.visibility = "visible";

  // For IE; size, position and display the menu's IFRAME as well.

  if (item.subMenu.iframeEl != null)
  {
    item.subMenu.iframeEl.style.left    = item.subMenu.style.left;
    item.subMenu.iframeEl.style.top     = item.subMenu.style.top;
    item.subMenu.iframeEl.style.width   = item.subMenu.offsetWidth + "px";
    item.subMenu.iframeEl.style.height  = item.subMenu.offsetHeight + "px";
    item.subMenu.iframeEl.style.display = "";
  }

  // Stop the event from bubbling.

  if (browser.IE)
    window.event.cancelBubble = true;
  else
    event.stopPropagation();
}






function closeSubMenu(menu) {

	//alert("closeSubMenu::ENter")


  if (menu == null || menu.activeItem == null)
    return;

  // Recursively close any sub menus.

  if (menu.activeItem.subMenu != null) {
    closeSubMenu(menu.activeItem.subMenu);
    menu.activeItem.subMenu.style.visibility = "hidden";

    // For IE, hide the sub menu's IFRAME as well.

    if (menu.activeItem.subMenu.iframeEl != null)
      menu.activeItem.subMenu.iframeEl.style.display = "none";

    menu.activeItem.subMenu = null;
  }

  // Deactivate the active menu item.

  removeClassName(menu.activeItem, "menuItemHighlight");
  menu.activeItem = null;
}




function buttonOrMenuMouseout(event) {
	//alert("buttonOrMenuMouseout::ENter")

  var el;

  // If there is no active button, exit.

  if (activeButton == null)
    return;

  // Find the element the mouse is moving to.

  if (browser.IE)
    el = window.event.toElement;
  else if (event.relatedTarget != null)
      el = (event.relatedTarget.tagName ? event.relatedTarget : event.relatedTarget.parentNode);

  // If the element is not part of a menu, reset the active button.

  if (getContainerWith(el, "DIV", "menu") == null) {
    resetButton(activeButton);
    activeButton = null;
  }
}


//----------------------------------------------------------------------------
// Code to initialize menus.
//----------------------------------------------------------------------------

function menuInit(menu) {
	//alert("menuInit::ENter")

  var itemList, spanList;
  var textEl, arrowEl;
  var itemWidth;
  var w, dw;
  var i, j;

  // For IE, replace arrow characters.

  if (browser.IE) {
    menu.style.lineHeight = "2.5ex";
    spanList = menu.getElementsByTagName("SPAN");
    for (i = 0; i < spanList.length; i++)
      if (hasClassName(spanList[i], "menuItemArrow")) {
        spanList[i].style.fontFamily = "Webdings";
        spanList[i].firstChild.nodeValue = "4";
      }
  }

  // Find the width of a menu item.

  itemList = menu.getElementsByTagName("A");
  if (itemList.length > 0)
    itemWidth = itemList[0].offsetWidth;
  else
    return;

  // For items with arrows, add padding to item text to make the
  // arrows flush right.

  for (i = 0; i < itemList.length; i++) {
    spanList = itemList[i].getElementsByTagName("SPAN");
    textEl  = null;
    arrowEl = null;
    for (j = 0; j < spanList.length; j++) {
      if (hasClassName(spanList[j], "menuItemText"))
        textEl = spanList[j];
      if (hasClassName(spanList[j], "menuItemArrow"))
        arrowEl = spanList[j];
    }
    if (textEl != null && arrowEl != null) {
      textEl.style.paddingRight = (itemWidth
        - (textEl.offsetWidth + arrowEl.offsetWidth)) + "px";
      // For Opera, remove the negative right margin to fix a display bug.
      if (browser.OP)
        arrowEl.style.marginRight = "0px";
    }
  }

  // Fix IE hover problem by setting an explicit width on first item of
  // the menu.

  if (browser.IE) {
    w = itemList[0].offsetWidth;
    itemList[0].style.width = w + "px";
    dw = itemList[0].offsetWidth - w;
    w -= dw;
    itemList[0].style.width = w + "px";
  }

  // Fix the IE display problem (SELECT elements and other windowed controls
  // overlaying the menu) by adding an IFRAME under the menu.

  if (browser.IE) {
    menu.iframeEl = menu.parentNode.insertBefore(document.createElement("IFRAME"), menu);
    menu.iframeEl.style.display = "none";
    menu.iframeEl.style.position = "absolute";
  }

  menu.isInitialized = true;
}

//----------------------------------------------------------------------------
// General utility functions.
//----------------------------------------------------------------------------

function getContainerWith(node, tagName, className) {

	//alert("getContainerWith::ENter")


  // Starting with the given node, find the nearest containing element
  // with the specified tag name and style class.

  while (node != null) {
    if (node.tagName != null && node.tagName == tagName &&
        hasClassName(node, className))
      return node;
    node = node.parentNode;
  }

  return node;
}



function hasClassName(el, name) {
	//alert("hasClassName::ENter")

  var i, list;

  // Return true if the given element currently has the given class
  // name.

  list = el.className.split(" ");
  for (i = 0; i < list.length; i++)
    if (list[i] == name)
      return true;

  return false;
}




function removeClassName(el, name) {
	//alert("removeClassName::ENter")

  var i, curList, newList;

  if (el.className == null)
    return;

  // Remove the given class name from the element's className property.

  newList = new Array();
  curList = el.className.split(" ");
  for (i = 0; i < curList.length; i++)
    if (curList[i] != name)
      newList.push(curList[i]);
  el.className = newList.join(" ");
}





function getPageOffsetLeft(el) {
	//alert("getPageOffsetLeft::ENter")

  var x;

  // Return the x coordinate of an element relative to the page.

  x = el.offsetLeft;
  if (el.offsetParent != null)
    x += getPageOffsetLeft(el.offsetParent);

  return x;
}

function getPageOffsetTop(el) {

  var y;

  // Return the x coordinate of an element relative to the page.

  y = el.offsetTop;
  if (el.offsetParent != null)
    y += getPageOffsetTop(el.offsetParent);

  return y;
}