// JavaScript Document
function getObject(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));
    xpos = xpos + dist;
  }
  if (xpos > final_x) {
    var dist = Math.ceil((xpos - final_x));
    xpos = xpos - dist;
  }
  if (ypos < final_y) {
    var dist = Math.ceil((final_y - ypos));
    ypos = ypos + dist;
  }
  if (ypos > final_y) {
    var dist = Math.ceil((ypos - final_y));
    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= getObject(iFocusBtnID).getElementsByTagName('li');
	var iFocusTxs = getObject(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= getObject(iFocusBtnID).getElementsByTagName('li');
	var iFocusTxs = getObject(iFocusTxID).getElementsByTagName('li');
	iFocusBtns[n].className='current';
	iFocusTxs[n].className='current';
}

function iFocusChange() {
	if(!getObject('ifocus')) return false;
	getObject('ifocus').onmouseover = function(){atuokey = true};
	getObject('ifocus').onmouseout = function(){atuokey = false};
	var iFocusBtns = getObject('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',-420,0,5);
			classNormal('ifocus_btn','ifocus_tx');
			classCurrent('ifocus_btn','ifocus_tx',1);
		}
	}
	if (listLength>=3) {
		iFocusBtns[2].onmouseover = function() {
			moveElement('ifocus_piclist',-840,0,5);
			classNormal('ifocus_btn','ifocus_tx');
			classCurrent('ifocus_btn','ifocus_tx',2);
		}
	}
	if (listLength>=4) {
		iFocusBtns[3].onmouseover = function() {
			moveElement('ifocus_piclist',-1260,0,5);
			classNormal('ifocus_btn','ifocus_tx');
			classCurrent('ifocus_btn','ifocus_tx',3);
		}
	}
}

setInterval('autoiFocus()',5000);
var atuokey = false;
function autoiFocus() {
	if(!getObject('ifocus')) return false;
	if(atuokey) return false;
	var focusBtnList = getObject('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',-420,0,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',1);
	}
	if (currentNum==1&&listLength!=2 ){
		moveElement('ifocus_piclist',-840,0,5);
		classNormal('ifocus_btn','ifocus_tx');
		classCurrent('ifocus_btn','ifocus_tx',2);
	}
	if (currentNum==2&&listLength!=3 ){
		moveElement('ifocus_piclist',-1260,0,5);
		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);
	}
	
}
addLoadEvent(iFocusChange);

var	css = '\
<style type="text/css">\
<!--\
#ifocus {\width:420px; height:374px; }\
#ifocus_pic {\ position:relative; width:420px; height:374px; overflow:hidden;}\
#ifocus_piclist {\ position:absolute; width:1680px;}\
#ifocus_piclist li {\ width:420px; height:354px; overflow:hidden; float:left;}\
#ifocus_piclist img {\ width:420px; height:354px; }\
#ifocus_opdiv {\width:420px;height:90px;position:absolute;left:0;bottom:0;background-color:#000000;}\
#ifocus_tx {\ position:absolute; left:10px; top:285px; color:#FFF; }\
#ifocus_tx li {\ line-height:16px;}\
#ifocus_tx a {\ color:#c1c1c1;background: transparent;text-decoration: none}\
#ifocus_tx a:hover{\ color:#4299b9;background: transparent;text-decoration: none}\
#ifocus_tx .normal {\ display:none; }\
#ifocus_tx .current {\ text-align:left;width:400px;}\
#ifocus_tx .tttitle {\ text-align:left;font-size:16px; line-height:30px;font-weight:bold; color:#fff;}\
#ifocus_btn {\ position:absolute; right:0px; bottom:5px;}\
#ifocus_btn ul {\ width:80px; margin-right:0px;}\
#ifocus_btn li {\ width:16px; height:16px; opacity:0.5; -moz-opacity:0.5; filter:alpha(opacity=50); float:left; }\
#ifocus_btn img {\ width:8px; height:8px; }\
#ifocus_btn .current {\ opacity:1; -moz-opacity:1; filter:alpha(opacity=100); }\
-->\
</style>\
';
document.writeln(css);