//滑動選單 Start
checkTimer = 6 //選單的移動速度
menuTopPosition=212 //選單的垂直位置間格
menuLeftPosition=930 //選單的水平位置間格

//初始選單
function iniMenuPosition(){
 floatmenu.style.top = document.body.scrollTop + menuTopPosition
 floatmenu.style.left = menuLeftPosition
 floatmenu.style.visibility = "visible"

 checkMenuPosition()
}

//異動選單位置
function checkMenuPosition()
{
 var offsetY
 floatmenu.style.left = menuLeftPosition
 menuTop = parseInt (floatmenu.style.top, 10)
 menuToPosition = document.body.scrollTop + menuTopPosition 
   if ( menuTop != menuToPosition ) 
   {
 	offsetY = Math.ceil( Math.abs( menuToPosition - menuTop ) / 20 )
	if ( menuToPosition < menuTop )
	{
	 offsetY = -offsetY
	}                      
	 floatmenu.style.top = parseInt (floatmenu.style.top, 10) + offsetY
    }
  setTimeout ("checkMenuPosition()", checkTimer)
}
//滑動選單 End