// JavaScript Document
$(document).ready(function(){
	$('.nav').hover(function(){
		switch($(this).attr('id'))
		{
			case 'nav1':
				$(this).attr('src','img/front/nav/hover/hover1.jpg');
				break;
			case 'nav2':
				$(this).attr('src','img/front/nav/hover/hover2.jpg');
				break;
			case 'nav3':
				$(this).attr('src','img/front/nav/hover/hover3.jpg');
				break;
			case 'nav4':
				$(this).attr('src','img/front/nav/hover/hover4.jpg');
				break;
			case 'nav5':
				$(this).attr('src','img/front/nav/hover/hover5.jpg');
				break;
			case 'nav6':
				$(this).attr('src','img/front/nav/hover/hover6.jpg');
				break;
		}
	},function(){
		switch($(this).attr('id'))
		{
			case 'nav1':
				$(this).attr('src','img/front/nav/nav6.jpg');
				break;
			case 'nav2':
				$(this).attr('src','img/front/nav/nav1.jpg');
				break;
			case 'nav3':
				$(this).attr('src','img/front/nav/nav2.jpg');
				break;
			case 'nav4':
				$(this).attr('src','img/front/nav/nav3.jpg');
				break;
			case 'nav5':
				$(this).attr('src','img/front/nav/nav4.jpg');
				break;
			case 'nav6':
				$(this).attr('src','img/front/nav/nav5.jpg');
				break;
		}
		});						   
});

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

function iFocusChange() {
 if(!get('ifocus')) return false;
 get('ifocus').onmouseover = function(){atuokey = true};
 get('ifocus').onmouseout = function(){atuokey = false};
 var iFocusBtns = get('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,-230,5);
 classNormal('ifocus_btn','ifocus_tx');
 classCurrent('ifocus_btn','ifocus_tx',1);
 }
 }
 if (listLength>=3) {
 iFocusBtns[2].onmouseover = function() {
 moveElement('ifocus_piclist',0,-460,5);
 classNormal('ifocus_btn','ifocus_tx');
 classCurrent('ifocus_btn','ifocus_tx',2);
 }
 }
 if (listLength>=4) {
 iFocusBtns[3].onmouseover = function() {
 moveElement('ifocus_piclist',0,-690,5);
 classNormal('ifocus_btn','ifocus_tx');
 classCurrent('ifocus_btn','ifocus_tx',3);
 }
 }
}

setInterval('autoiFocus()',5000);
var atuokey = false;
function autoiFocus() {
 if(!get('ifocus')) return false;
 if(atuokey) return false;
 var focusBtnList = get('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,-230,5);
 classNormal('ifocus_btn','ifocus_tx');
 classCurrent('ifocus_btn','ifocus_tx',1);
 }
 if (currentNum==1&&listLength!=2 ){
 moveElement('ifocus_piclist',0,-460,5);
 classNormal('ifocus_btn','ifocus_tx');
 classCurrent('ifocus_btn','ifocus_tx',2);
 }
 if (currentNum==2&&listLength!=3 ){
 moveElement('ifocus_piclist',0,-690,5);
 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);