function webClient() {

  var i;

  this.IE    = false;
  this.NS    = false;
  this.OP    = false; 
  this.release = null;
  
  if ((i = navigator.userAgent.indexOf("Opera")) >= 0) {
    this.OP = true;
    this.version = parseFloat(navigator.userAgent.substr(i + 5));
    return;
  }

  
  if ((i = navigator.userAgent.indexOf("MSIE")) >= 0) {
    this.IE = true;
    this.release = parseFloat(navigator.userAgent.substr(i + 4));
    return;
  }

  if ((i = navigator.userAgent.indexOf("Netscape6/")) >= 0) {
    this.NS = true;
    this.release = parseFloat(navigator.userAgent.substr(i + 10));
    return;
  }

  if ((i = navigator.userAgent.indexOf("Netscape7/")) >= 0) {
    this.NS = true;
    this.release = parseFloat(navigator.userAgent.substr(i + 10));
    return;
  }

  if ((i = navigator.userAgent.indexOf("Gecko")) >= 0) {
    this.NS = true;
    this.release = 6.1;
    return;
  }
}


var webClient = new webClient();

var activeButton = null;
var activeSubButton = null;

 if (webClient.IE) {
	 document.onmousedown = pageMouseDown;
  } else {
     document.addEventListener("mousedown", pageMouseDown, true);
}
function getElement(event) {
  //alert("event=" + event + " target=" + event.target + " srcElement=" + event.srcElement + " eventType=" + event.type + " tagName=" + event.target.tagName  + " parentNode=" + event.target.parentNode )
  var targ;
  if (event.target) {
    targ = event.target;
  } else {
    targ = event.srcElement;
  }
  if(targ){
    if (targ.tagName) {
      return targ;
    } else {
      return targ.parentNode;
    }
  }
}

function pageMouseDown(event) {

  var el;
  
  //if (activeButton == null)
  //  return;

  if (webClient.IE) {
    el = window.event.srcElement;
  } else {
    el = getElement(event);
  }

  if (el == activeButton || el == activeSubButton){
   // alert("1" + el);
    return;
  }
  if (el.className != "menuButton"  && el.className != "menuItem" &&
      el.className != "menuItemSep" && el.className != "menu") {
	    if (activeButton) closeMenu(activeButton);
    	if (activeSubButton) closeSubMenu(activeSubButton);
	//}else{
	//alert("2" + el);
	}
}

function menuTouch(event, menuName) {
  var button;
  if (webClient.IE) {
    button = window.event.srcElement;
  } else {
    button = getElement(event);
  }
  if (button){
    if (!button.menu && menuName) {
      button.menu = document.getElementById(menuName);
	}
  }

  if (activeButton && activeButton != button)
    closeMenu(activeButton);
  if (activeSubButton && activeSubButton != button)
    closeSubMenu(activeSubButton);
	
  if (button && !button.isactive)
  	if (menuName) {
	    openMenu(button);
	//} else {
	//	activeButton=button;
	//	button.isactive=true;
	//	button.className = "menuButtonActive";
	}
  return false;
}

function subMenuTouch(event, menuName) {
  var button;

  if (webClient.IE) {
    button = window.event.srcElement;
  } else {
    button = getElement(event);
  }

  if (button){
    if (!button.menu && menuName) {
      button.menu = document.getElementById(menuName);
	}
  }
  if (activeSubButton && activeSubButton != button)
    closeSubMenu(activeSubButton);

  if (button && !button.isactive && menuName)
    openSubMenu(button);

  return false;
}

function openSubMenu(button) {

  var w, dw, x, y;

  button.className = "menuItemActive";  
  
  if (webClient.IE && !button.menu.firstChild.style===undefined) {
    w = button.menu.firstChild.offsetWidth;
    button.menu.firstChild.style.width = w + "px";
    dw = button.menu.firstChild.offsetWidth - w;
    w -= dw;
    button.menu.firstChild.style.width = w + "px";
  }

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

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

  button.isactive = true;
  activeSubButton = button;
}

function openMenu(button) {

  var w, dw, x, y;

  button.className = "menuButtonActive";
  if (webClient.IE && !button.menu.firstChild.style===undefined) {
    w = button.menu.firstChild.offsetWidth;
    button.menu.firstChild.style.width = w + "px";
    dw = button.menu.firstChild.offsetWidth - w;
    w -= dw;
    button.menu.firstChild.style.width = w + "px";
  }

  x = getPageOffsetLeft(button)-1;  
  y = getPageOffsetTop(button) + button.offsetHeight;

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

  button.isactive = true;
  activeButton = button;
}

function closeMenu(button) {
  button.className = "menuButton";

  if (button.menu) button.menu.style.visibility = "hidden";

  button.isactive = false;
  activeButton = null;
}

function closeSubMenu(button) {
  button.className = "menuItem";

  if (button.menu) button.menu.style.visibility = "hidden";

  button.isactive = false;
  activeSubButton = null;
}


function getPageOffsetLeft(el) {
  return el.offsetLeft + (el.offsetParent ? getPageOffsetLeft(el.offsetParent) : 0);
}

function getPageOffsetTop(el) {
  return el.offsetTop + (el.offsetParent ? getPageOffsetTop(el.offsetParent) : 0);
}