// JScript 文件

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) 
    {
        moveing = false;
        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() 
{
    var btnList = $('focusNewsButton').getElementsByTagName('li');
    for (var i=0; i<btnList.length; i++)
    {
        btnList[i].className='normal';
    }
}

function picZ() 
{
    var picList = $('focusNewsPicture').getElementsByTagName('a');
    for (var i=0; i<picList.length; i++)
    {
        picList[i].style.zIndex='1';
    }
}

var autoKey = false;

function iBanner() 
{
    if(!$('focusNews')||!$('focusNewsPicture')||!$('focusNewsButton')) 
    {
        return;
    }
    $('focusNews').onmouseover = function()
    {
        autoKey = true
    };
    $('focusNews').onmouseout = function()
    {
        autoKey = false
    };
    var btnList = $('focusNewsButton').getElementsByTagName('li');
    var picList = $('focusNewsPicture').getElementsByTagName('a');
    if (picList.length == 1) 
    {
        return;
    }
    picList[0].style.zIndex='2';
    for (var m=0; m<btnList.length; m++)
    {
        btnList[m].onmouseover = function() 
        {
            for(var n=0; n<btnList.length; n++) 
            {
                if (btnList[n].className == 'focus') 
                {
                    var currentNum = n;
                }
            }
            classNormal();
            picZ();
            this.className='focus';
            picList[currentNum].style.zIndex='2';
            //var z = this.childNodes[0].nodeValue-1;
            var z=this.childNodes[0].id.replace("hlkTxt","");
            picList[z].style.zIndex='3';
            if (currentNum!=z)
            {
                picList[z].style.left='-305px';
                moveElement('hlkPic'+z,2,2,10);
            }
            if(btnList[0].className=='focus')
            {
                $('focusNewsPicture').className='focus';
            }
            else
            {
                $('focusNewsPicture').className='normal';
            }
        }
    }
}

setInterval('autoBanner()', 5000);

function autoBanner() 
{
    if(!$('focusNews')||!$('focusNewsPicture')||!$('focusNewsButton')||autoKey) 
    {
        return;
    }
    var btnList = $('focusNewsButton').getElementsByTagName('li');
    var picList = $('focusNewsPicture').getElementsByTagName('a');
    if (picList.length==1) 
    {
        return;
    }
    for(var i=0; i<btnList.length; i++) 
    {
        if (btnList[i].className == 'focus') 
        {
            var currentNum = i;
        }
    }
    if (currentNum==(picList.length-1) )
    {
        classNormal();
        picZ();
        btnList[0].className='focus';
        picList[currentNum].style.zIndex='2';
        picList[0].style.zIndex='3';
        picList[0].style.left='-305px';
        moveElement('hlkPic0',2,2,10);
    }
    else 
    {
        classNormal();
        picZ();
        var nextNum = currentNum+1;
        btnList[nextNum].className='focus';
        picList[currentNum].style.zIndex='2';
        picList[nextNum].style.zIndex='3';
        picList[nextNum].style.left='-305px';
        moveElement('hlkPic'+nextNum,2,2,10);
    }
    if(btnList[0].className=='focus')
    {
        $('focusNewsPicture').className='focus';
    }
    else
    {
        $('focusNewsPicture').className='normal';
    }
}

addLoadEvent(iBanner);