// JavaScript Document

// 显示
function boxShow(obj)
{
    var obj = getId(obj);
    obj.style.display = '';
}

//隐藏
function boxHidden(obj)
{
    var obj = getId(obj);
    obj.style.display = 'none';
}

// 焦点图
function changeImg()
{
    setFocus(_tn);
    _tt1 = setTimeout('changeImg()', _t2*1000);
}

function setFocus(i)
{
    if(i > _tnum)
    {
        _tn = 1;
        i = 1;
    }

    _tl ? document.getElementById('focusPic'+_tl).className = 'undis' : '';
    document.getElementById('focusPic'+i).className = 'dis';

    _tl = i;
    _tn++;

    var ifocus_btn = document.getElementById('ifocus_btn').getElementsByTagName('li');

    for (j=0; j< ifocus_btn.length; j++)
    {
        ifocus_btn[j].className = '';
    }

    ifocus_btn[i-1].className = 'on';
}

// 矿业公司切换
function tabDes(tab_com, tab_com_t, n, m)
{
    for(var i = 0; i < m; i++)
    {
        getId(tab_com + i).className = 'undis';
        getId(tab_com_t + i).className = 'dis';
    }

    getId(tab_com + n).className = 'dis';
    getId(tab_com_t + n).className = 'undis';

    var com_list = document.getElementById('com_list').getElementsByTagName('li');

    for (j = 0; j < com_list.length; j++)
    {
        com_list[j].className = '';
    }

    com_list[n].className = 'lis_none';
}

//滑动门
//参数说明:n为标签编号,m为标签数量,q为标签名称的前缀，如id=tb_1中的"tb_",p为内容层的前缀,如id=tbc_01的"tbc_0"
function hoverLi(n, m, q, p)
{
    //m为标签数量 m=6
    //q为前缀  q=tb_
    //如果有N个标签,就将i<=N;
    //兼容IE7,FF,IE6
    for (var i = 1; i <= m; i++)
    {
        getId(q+i).className = 'normaltab';
        getId(p+i).className = 'undis';
    }

    getId(p+n).className = 'dis';
    getId(q+n).className = 'hovertab';
}