//首页服务内容动态效果
var vSelect = 1;
function pushButton(num)
{
    var divPA = document.getElementById("divP" + vSelect);
    var divPB = document.getElementById("divP" + num);
    var divObjs1 = document.getElementById("divP" + vSelect + "1");
    var divObjs2 = document.getElementById("divP" + vSelect + "2");
    var divObjc1 = document.getElementById("divP" + num + "1");
    var divObjc2 = document.getElementById("divP" + num + "2");
    var imgObjs = document.getElementById("imgp" + vSelect);
    var imgObjc = document.getElementById("imgp" + num);
    //alert("selected="+vSelect + '|' + num);
    divObjs1.style.display = "none";
    divObjs2.style.display = "none";
    imgObjs.src = "res/botton_nn1.jpg";
    divPA.className = "first_left_top_2"
    divObjc1.style.display = "block";
    divObjc2.style.display = "block";
    imgObjc.src = "res/botton_nn.jpg";
    divPB.className = "first_left_top_1";
    vSelect = num;
}