// JScript 文件

function G(id)
 { 
    return document.getElementById(id); 
 }
 
function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function') 
	{
		window.onload = func;
	} 
	else 
	{
		window.onload = function()
		{
			oldonload();
			func();
		}
	}
}

function moveElement(elementID,final_x,final_y,interval) 
{
  if (!document.getElementById) return false;
  if (!document.getElementById(elementID)) return false;
  var elem = document.getElementById(elementID);
  if (elem.movement) 
  {
    clearTimeout(elem.movement);
  }
  if (!elem.style.left) 
  {
    elem.style.left = "0px";
  }
  if (!elem.style.top) 
  {
    elem.style.top = "0px";
  }
  var xpos = parseInt(elem.style.left);
  var ypos = parseInt(elem.style.top);
  if (xpos == final_x && ypos == final_y) 
  {
		return true;
  }
  if (xpos < final_x)
  {
    var dist = Math.ceil((final_x - xpos)/10);
    xpos = xpos + dist;
  }
  if (xpos > final_x) 
  {
    var dist = Math.ceil((xpos - final_x)/10);
    xpos = xpos - dist;
  }
  if (ypos < final_y) 
  {
    var dist = Math.ceil((final_y - ypos)/10);
    ypos = ypos + dist;
  }
  if (ypos > final_y) 
  {
    var dist = Math.ceil((ypos - final_y)/10);
    ypos = ypos - dist;
  }
  elem.style.left = xpos + "px";
  elem.style.top = ypos + "px";
  var repeat = "moveElement('"+elementID+"',"+final_x+","+final_y+","+interval+")";
  elem.movement = setTimeout(repeat,interval);
}

function classNormal(iFocusBtnID,iFocusTxID)
{
	var iFocusBtns= G(iFocusBtnID).getElementsByTagName('li');
	var iFocusTxs = G(iFocusTxID).getElementsByTagName('li');
	for(var i=0; i<iFocusBtns.length; i++) 
	{
		iFocusBtns[i].className='normal';
		iFocusTxs[i].className='normal';
	}
}

function classCurrent(iFocusBtnID,iFocusTxID,n)
{
	var iFocusBtns= G(iFocusBtnID).getElementsByTagName('li');
	var iFocusTxs = G(iFocusTxID).getElementsByTagName('li');
	iFocusBtns[n].className='current';
	iFocusTxs[n].className='current';
}

function iFocusChange() 
{  
	if(!G('ifocus')) return false;
	G('ifocus').onmouseover = function(){atuokey = true};
	G('ifocus').onmouseout = function(){atuokey = false};
	var iFocusBtns = G('ifocus_btn').getElementsByTagName('li');
	var listLength = iFocusBtns.length;
	iFocusBtns[0].onmouseover = function() 
	{
		moveElement('ifocus_piclist',0,0,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',0);
	}
	if (listLength>=2)
	{
		iFocusBtns[1].onmouseover = function() 
		{
			moveElement('ifocus_piclist',0,-210,5);
			classNormal('ifocus_btn','ifocus_tx');
			classCurrent('ifocus_btn','ifocus_tx',1);
		}
	}
	if (listLength>=3) 
	{
		iFocusBtns[2].onmouseover = function() 
		{
			moveElement('ifocus_piclist',0,-415,5);
			classNormal('ifocus_btn','ifocus_tx');
			classCurrent('ifocus_btn','ifocus_tx',2);
		}
	}
	if (listLength>=4) 
	{
		iFocusBtns[3].onmouseover = function() 
		{
			moveElement('ifocus_piclist',0,-620,5);
			classNormal('ifocus_btn','ifocus_tx');
			classCurrent('ifocus_btn','ifocus_tx',3);
		}
	}
}

setInterval('autoiFocus()',3500);
var atuokey = false;
function autoiFocus() 
{
	if(!G('ifocus')) return false;
	if(atuokey) return false;
	var focusBtnList = G('ifocus_btn').getElementsByTagName('li');
	var listLength = focusBtnList.length;
	for(var i=0; i<listLength; i++) 
	{
		if (focusBtnList[i].className == 'current') var currentNum = i;
	}
	if (currentNum==0&&listLength!=1 )
	{
		moveElement('ifocus_piclist',0,-225,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',1);
	}
	if (currentNum==1&&listLength!=2 )
	{
		moveElement('ifocus_piclist',0,-450,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',2);
	}
	if (currentNum==2&&listLength!=3 )
	{
		moveElement('ifocus_piclist',0,-675,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',3);
	}
	if (currentNum==3 )
	{
		moveElement('ifocus_piclist',0,0,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',0);
	}
	if (currentNum==1&&listLength==2 )
	{
		moveElement('ifocus_piclist',0,0,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',0);
	}
	if (currentNum==2&&listLength==3 )
	{
		moveElement('ifocus_piclist',0,0,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',0);
	}
}
addLoadEvent(iFocusChange);