function welcomeshowxia(divid,i)
{
    var n1=document.getElementById("n17");
    var n2=document.getElementById("n18");
    var n3=document.getElementById("n19");
    
    n1.style.display="none";
    n2.style.display="none";
    n3.style.display="none";
    var divid=document.getElementById(divid);
    divid.style.display = "block";
    
    var img_d1=document.getElementById("img_d17");
    var img_d2=document.getElementById("img_d18");
    var img_d3=document.getElementById("img_d19");
    img_d1.src = "/images/tou2_03.jpg";
    img_d2.src = "/images/tou1_05.jpg";
    img_d3.src = "/images/tou1_06.jpg";
    
    var img = document.getElementById("img_d"+i);
    img.src = '/images/xiaoc_'+i+'.jpg';

    
}
function welcomeshow(divid,i)
{
    var n1=document.getElementById("n1");
    var n2=document.getElementById("n2");
    var n3=document.getElementById("n3");
    var n4=document.getElementById("n4");
    
    n1.style.display="none";
    n2.style.display="none";
    n3.style.display="none";
    n4.style.display="none";
    var divid=document.getElementById(divid);
    divid.style.display = "block";
    
    var img_d1=document.getElementById("img_d1");
    var img_d2=document.getElementById("img_d2");
    var img_d3=document.getElementById("img_d3");
    var img_d4=document.getElementById("img_d4");
    
    img_d1.src = "/images/icon_01.jpg";
    img_d2.src = "/images/icon_02.jpg";
    img_d3.src = "/images/icon_03.jpg";
    img_d4.src = "/images/icon_04.jpg";
    
    var img = document.getElementById("img_d"+i);
    img.src = '/images/icon_0'+i+'over.jpg';

    
}