var max_index=3;
//二手车
function changeall() {
for (i=1;i<max_index+1;i++) {
document.getElementById("esctr"+i).style.display="none";
document.getElementById("esc"+i).style.backgroundImage= "url(/image/bgt1_2.gif)";
document.getElementById("esc"+i).style.fontWeight= "normal";
document.getElementById("esc"+i).style.color= "#000000";
}
}
function change(a) {
changeall();
document.getElementById("esctr"+a).style.display="";
document.getElementById("esc"+a).style.backgroundImage= "url(/image/bgt1_1.gif)";
document.getElementById("esc"+a).style.fontWeight= "bold";
document.getElementById("esc"+a).style.color= "#ffffff";
}

//美女图库
function changeall1() {
for (i=1;i<max_index+1;i++) {
document.getElementById("pictr"+i).style.display="none";
document.getElementById("pict"+i).src="/image/pict"+i+"1.gif";
}
}
function change1(a) {
changeall1();
document.getElementById("pictr"+a).style.display="";
document.getElementById("pict"+a).src="/image/pict"+a+"2.gif";
}

//新改美女图库
var max_index2=3;
function changeall2() {
for (i=1;i<max_index2+1;i++) {
document.getElementById("pictr"+i).style.display="none";
document.getElementById("pict"+i).style.backgroundImage= "url(/image/bgt_2.gif)";
document.getElementById("pict"+i).style.fontWeight= "normal";
}
}
function change2(a) {
changeall2();
document.getElementById("pictr"+a).style.display="";
document.getElementById("pict"+a).style.backgroundImage= "url(/image/bgt_1.gif)";
document.getElementById("pict"+a).style.fontWeight= "bold";
}

//热点车型
function getObj(objectId) {
    if(document.getElementById && document.getElementById(objectId)) {
        // W3C DOM
        return document.getElementById(objectId);
    } else if (document.all && document.all(objectId)) {
        // MSIE 4 DOM
        return document.all(objectId);
    } else if (document.layers && document.layers[objectId]) {
        // NN 4 DOM.. note: this won't find nested layers
        return document.layers[objectId];
    } else {
        return false;
    }
}

function tabindex(id)
{
        for(var i=1;i<=8;i++)
        {
                if(i==id) {
                        getObj("type"+i).className="tab1";
                        getObj("content"+i).style.display="block";
                } 
                else {
                        if (i==1) {
                           getObj("type"+i).className="tab2";
                        } 
                        else {
                           getObj("type"+i).className="tab2";
                        }
                        getObj("content"+i).style.display="none";
                }
        }
}