// JScript 文件

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

function iFocusChange() {
	if(!$('focus')) return false;
	$('focus').onmouseover = function(){atuokey = true};
	$('focus').onmouseout = function(){atuokey = false};
	var iFocusBtns = $('focus_btn').getElementsByTagName('li');
	var listLength = iFocusBtns.length;
	iFocusBtns[0].onmouseover = function() {
		moveElement('focus_piclist',0,0,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',0);
	}
	if (listLength>=2) {
		iFocusBtns[1].onmouseover = function() {
			moveElement('focus_piclist',0,-200,6);
			classNormal('focus_btn','focus_tx');
			classCurrent('focus_btn','focus_tx',1);
		}
	}
	if (listLength>=3) {
		iFocusBtns[2].onmouseover = function() {
			moveElement('focus_piclist',0,-400,6);
			classNormal('focus_btn','focus_tx');
			classCurrent('focus_btn','focus_tx',2);
		}
	}
	if (listLength>=4) {
		iFocusBtns[3].onmouseover = function() {
			moveElement('focus_piclist',0,-600,6);
			classNormal('focus_btn','focus_tx');
			classCurrent('focus_btn','focus_tx',3);
		}
	}
	if (listLength>=5) {
		iFocusBtns[4].onmouseover = function() {
			moveElement('focus_piclist',0,-800,6);
			classNormal('focus_btn','focus_tx');
			classCurrent('focus_btn','focus_tx',4);
		}
	}
}

setInterval('autoiFocus()',5000);
var atuokey = false;
function autoiFocus() {
	if(!$('focus')) return false;
	if(atuokey) return false;
	var focusBtnList = $('focus_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('focus_piclist',0,-200,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',1);
	}
	if (currentNum==1&&listLength!=2 ){
		moveElement('focus_piclist',0,-400,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',2);
	}
	if (currentNum==2&&listLength!=3 ){
		moveElement('focus_piclist',0,-600,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',3);
	}
	if (currentNum==3&&listLength!=4){
		moveElement('focus_piclist',0,-800,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',4);
	}
	if (currentNum==4 ){
		moveElement('focus_piclist',0,0,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',0);
	}
	if (currentNum==1&&listLength==2 ){
		moveElement('focus_piclist',0,0,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',0);
	}
	if (currentNum==2&&listLength==3 ){
		moveElement('focus_piclist',0,0,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',0);
	}
	if (currentNum==3&&listLength==4 ){
		moveElement('focus_piclist',0,0,6);
		classNormal('focus_btn','focus_tx');
		classCurrent('focus_btn','focus_tx',0);
	}
}

addLoadEvent(iFocusChange);



function at_display(x)
{
  var win = window.open();
  for (var i in x) win.document.write(i+' = '+x[i]+'<br>');
}

// ----- Show Aux -----

function at_show_aux(parent, child)
{
  var p = document.getElementById(parent);
  var c = document.getElementById(child );

  var top  = (c["at_position"] == "y") ? p.offsetHeight+2 : 0;
  var left = (c["at_position"] == "x") ? p.offsetWidth +2 : 0;

  for (; p; p = p.offsetParent)
  {
    top  += p.offsetTop;
    left += p.offsetLeft;
  }

  c.style.position   = "absolute";
  c.style.top        = top +'px';
  c.style.left       = left+'px';
  c.style.visibility = "visible";
}

// ----- Show -----

function at_show()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);

  at_show_aux(p.id, c.id);

  clearTimeout(c["at_timeout"]);
}

// ----- Hide -----

function at_hide()
{
  var c = document.getElementById(this["at_child"]);

  c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'", 155);
}

// ----- Click -----

function at_click()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);

  if (c.style.visibility != "visible")
       at_show_aux(p.id, c.id);
  else c.style.visibility = "hidden";

  return false;
}









var Speed = 10; //速度(毫秒)
var Space = 5; //每次移动(px)
var PageWidth = 105; //翻页宽度
var fill = 0; //整体移位
var MoveLock = false;
var MoveTimeObj;
var Comp = 0;
var AutoPlayObj = null;

AutoPlay();
function GetObj(objName){if(document.getElementById){return eval('document.getElementById("'+objName+'")')}else{return eval('document.all.'+objName)}}
function AutoPlay(){ //自动滚动
 clearInterval(AutoPlayObj);
 AutoPlayObj = setInterval('ISL_GoDown();ISL_StopDown();',5000); //间隔时间
}
function ISL_GoUp(){ //上翻开始
 if(MoveLock) return;
 clearInterval(AutoPlayObj);
 MoveLock = true;
 MoveTimeObj = setInterval('ISL_ScrUp();',Speed);
}
function ISL_StopUp(){ //上翻停止
 clearInterval(MoveTimeObj);
 if(GetObj('ISL_Cont').scrollLeft % PageWidth - fill != 0){
  Comp = fill - (GetObj('ISL_Cont').scrollLeft % PageWidth);
  CompScr();
 }else{
  MoveLock = false;

 }
 AutoPlay();
}
function ISL_ScrUp(){ //上翻动作
 if(GetObj('ISL_Cont').scrollLeft <= 0){GetObj('ISL_Cont').scrollLeft = GetObj('ISL_Cont').scrollLeft + GetObj('List1').offsetWidth}
 GetObj('ISL_Cont').scrollLeft -= Space ;
}
function ISL_GoDown(){ //下翻
 clearInterval(MoveTimeObj);
 if(MoveLock) return;
 clearInterval(AutoPlayObj);
 MoveLock = true;
 ISL_ScrDown();
 MoveTimeObj = setInterval('ISL_ScrDown()',Speed);
}
function ISL_StopDown(){ //下翻停止
 clearInterval(MoveTimeObj);
 if(GetObj('ISL_Cont').scrollLeft % PageWidth - fill != 0 ){
  Comp = PageWidth - GetObj('ISL_Cont').scrollLeft % PageWidth + fill;
  CompScr();
 }else{
  MoveLock = false;
 }
 AutoPlay();
}
function ISL_ScrDown(){ //下翻动作
 if(GetObj('ISL_Cont').scrollLeft >= GetObj('List1').scrollWidth){GetObj('ISL_Cont').scrollLeft = GetObj('ISL_Cont').scrollLeft - GetObj('List1').scrollWidth;}
 GetObj('ISL_Cont').scrollLeft += Space ;
}
function CompScr(){
 var num;
 if(Comp == 0){MoveLock = false;return;}
 if(Comp < 0){ //上翻
  if(Comp < -Space){
   Comp += Space;
   num = Space;
  }else{
   num = -Comp;
   Comp = 0;
  }
  GetObj('ISL_Cont').scrollLeft -= num;
  setTimeout('CompScr()',Speed);
 }else{ //下翻
  if(Comp > Space){
   Comp -= Space;
   num = Space;
  }else{
   num = Comp;
   Comp = 0;
  }
  GetObj('ISL_Cont').scrollLeft += num;
  setTimeout('CompScr()',Speed);
 }
}