function showDiv(width,height,mark,items,types)
{
    // 动态改变div内容
    setDivContent(mark,items,types);
    // 打开窗体    
    document.getElementById('popDiv').style.display='block';
    document.getElementById('bg').style.display='block';
    // 设置内容
    setPopDivSize(width,height,0,0);
}

function closeDiv()
{
    // 关闭窗体 
    document.getElementById('popDiv').style.display='none';
    document.getElementById('bg').style.display='none';
}

function cancelDiv()
{
    closeDiv();    
}

function setPopDivSize(width,height,x,y)
{
    // 设置窗体的大小位置    
    var bgWidth = document.getElementById("bg").offsetWidth;    
    var bgHeight = document.getElementById("bg").offsetHeight;
    var divLeft = (bgWidth - width) / 2;
    if (divLeft < 0) divLeft = 0;    
    var divTop = (bgHeight - height) / 2; 
    if (divTop < 0) divTop = 0;    
    document.getElementById("popDiv").style.width = width + "px";
    document.getElementById("popDiv").style.height = height + "px";
    document.getElementById("popDiv").style.top = divTop + "px";
    document.getElementById("popDiv").style.left = divLeft + "px";
}