// the number you pass to initLeft doesn't matter since it will get changed onactivate
// menuid,direction,left,top,width,height
var myMenu1 = new ypSlideOutMenu("menu1", "down", 100, 139, 140, 80)
var myMenu2 = new ypSlideOutMenu("menu2", "down", 100, 139, 170, 80)
   
  // for each menu, we set up the onactivate event to call repositionMenu with the amount offset from center, in pixels
myMenu1.onactivate = function() { repositionMenu(myMenu1, -313); }
myMenu2.onactivate = function() { repositionMenu(myMenu2, -103); }

// this function repositions a menu to the speicified offset from center
function repositionMenu(menu, offset)
{
// the new left position should be the center of the window + the offset
var newLeft = getWindowWidth() / 2 + offset;

// setting the left position in netscape is a little different than IE
menu.container.style ? menu.container.style.left = newLeft + "px" : menu.container.left = newLeft;
}
 
  // this function calculates the window's width - different for IE and netscape
function getWindowWidth() {return window.innerWidth ? window.innerWidth : document.body.offsetWidth;}	

ypSlideOutMenu.writeCSS();