/* Script by: www.jtricks.com 
  * Version: 20071017 
  * Latest version: 
  * www.jtricks.com/javascript/navigation/floating.html 
  */  
 var floatingMenuId = 'floatdiv';  
 var floatingMenu =  
 {  
     targetX: -40,  
     targetY: 270,  
   
     hasInner: typeof(window.innerWidth) == 'number',  
     hasElement: typeof(document.documentElement) == 'object'  
         && typeof(document.documentElement.clientWidth) == 'number',  
   
     menu:  
         document.getElementById  
         ? document.getElementById(floatingMenuId)  
         : document.all  
           ? document.all[floatingMenuId]  
           : document.layers[floatingMenuId]  
 };  
   
 floatingMenu.move = function ()  
 {  
     floatingMenu.menu.style.left = floatingMenu.nextX + 'px';  
     floatingMenu.menu.style.top = floatingMenu.nextY + 'px';  
 }  
   
 floatingMenu.computeShifts = function ()  
 {  
     var de = document.documentElement;  
   
     floatingMenu.shiftX =    
         floatingMenu.hasInner    
         ? pageXOffset    
         : floatingMenu.hasElement    
           ? de.scrollLeft    
           : document.body.scrollLeft;    
     if (floatingMenu.targetX < 0)  
     {  
         floatingMenu.shiftX +=  
             floatingMenu.hasElement  
             ? de.clientWidth  
             : document.body.clientWidth;  
     }  
   
     floatingMenu.shiftY =   
         floatingMenu.hasInner  
         ? pageYOffset  
         : floatingMenu.hasElement  
           ? de.scrollTop  
           : document.body.scrollTop;  
     if (floatingMenu.targetY < 0)  
     {  
         if (floatingMenu.hasElement && floatingMenu.hasInner)  
         {  
             // Handle Opera 8 problems  
             floatingMenu.shiftY +=  
                 de.clientHeight > window.innerHeight  
                 ? window.innerHeight  
                 : de.clientHeight  
         }  
         else  
         {  
             floatingMenu.shiftY +=  
                 floatingMenu.hasElement  
                 ? de.clientHeight  
                 : document.body.clientHeight;  
         }  
     }  
 }  
   
 floatingMenu.calculateCornerX = function()  
 {  
     if (floatingMenu.targetX != 'center')  
         return floatingMenu.shiftX + floatingMenu.targetX;  
   
     var width = parseInt(floatingMenu.menu.offsetWidth);  
   
     var cornerX =  
         floatingMenu.hasElement  
         ? (floatingMenu.hasInner  
            ? pageXOffset  
            : document.documentElement.scrollLeft) +   
           (document.documentElement.clientWidth - width)/2  
         : document.body.scrollLeft +   
           (document.body.clientWidth - width)/2;  
     return cornerX;  
 };  
   
 floatingMenu.calculateCornerY = function()  
 {  
     if (floatingMenu.targetY != 'center')  
         return floatingMenu.shiftY + floatingMenu.targetY;  
   
     var height = parseInt(floatingMenu.menu.offsetHeight);  
   
     // Handle Opera 8 problems  
     var clientHeight =   
         floatingMenu.hasElement && floatingMenu.hasInner  
         && document.documentElement.clientHeight   
             > window.innerHeight  
         ? window.innerHeight  
         : document.documentElement.clientHeight  
   
     var cornerY =  
         floatingMenu.hasElement  
         ? (floatingMenu.hasInner    
            ? pageYOffset  
            : document.documentElement.scrollTop) +   
           (clientHeight - height)/2  
         : document.body.scrollTop +   
           (document.body.clientHeight - height)/2;  
     return cornerY;  
 };  
   
 floatingMenu.doFloat = function()  
 {  
     var stepX, stepY;  
   
     floatingMenu.computeShifts();  
   
     var cornerX = floatingMenu.calculateCornerX();  
   
     var stepX = (cornerX - floatingMenu.nextX) * .07;  
     if (Math.abs(stepX) < .5)  
     {  
         stepX = cornerX - floatingMenu.nextX;  
     }  
   
     var cornerY = floatingMenu.calculateCornerY();  
   
     var stepY = (cornerY - floatingMenu.nextY) * .07;  
     if (Math.abs(stepY) < .5)  
     {  
         stepY = cornerY - floatingMenu.nextY;  
     }  
   
     if (Math.abs(stepX) > 0 ||  
         Math.abs(stepY) > 0)  
     {  
         floatingMenu.nextX += stepX;  
         floatingMenu.nextY += stepY;  
         floatingMenu.move();  
     }  
   
     setTimeout('floatingMenu.doFloat()', 20);  
 };  
   
 // addEvent designed by Aaron Moore  
 floatingMenu.addEvent = function(element, listener, handler)  
 {  
     if(typeof element[listener] != 'function' ||   
        typeof element[listener + '_num'] == 'undefined')  
     {  
         element[listener + '_num'] = 0;  
         if (typeof element[listener] == 'function')  
         {  
             element[listener + 0] = element[listener];  
             element[listener + '_num']++;  
         }  
         element[listener] = function(e)  
         {  
             var r = true;  
             e = (e) ? e : window.event;  
             for(var i = element[listener + '_num'] -1; i >= 0; i--)  
             {  
                 if(element[listener + i](e) == false)  
                     r = false;  
            }  
            return r;  
         }  
     }  
   
     //if handler is not already stored, assign it  
     for(var i = 0; i < element[listener + '_num']; i++)  
         if(element[listener + i] == handler)  
             return;  
     element[listener + element[listener + '_num']] = handler;  
     element[listener + '_num']++;  
 };  
   
 floatingMenu.init = function()  
 {  
     floatingMenu.initSecondary();  
     floatingMenu.doFloat();  
 };  
   
 // Some browsers init scrollbars only after  
 // full document load.  
 floatingMenu.initSecondary = function()  
 {  
     floatingMenu.computeShifts();  
     floatingMenu.nextX = floatingMenu.calculateCornerX();  
     floatingMenu.nextY = floatingMenu.calculateCornerY();  
     floatingMenu.move();  
 }  
   
if (document.layers)  
     floatingMenu.addEvent(window, 'onload', floatingMenu.init);  
 else  
 {  
     floatingMenu.init();  
     floatingMenu.addEvent(window, 'onload',  
      floatingMenu.initSecondary);  
}  
  
//-->