function SetIMG(name, value)
{
    SetDisplay();
    document.getElementById(name).src = "/Program/dis_img/" + value;
    document.getElementById(name + "0").style.display = "";
}
    
function SetDisplay()
{
    for(var i = 0; i < 4; i++)
    {
        document.getElementById("a" + (i + 1) + "0").style.display = "none";
        document.getElementById("a" + (i + 1)).src = "/Program/dis_img/sep_" + (i + 1) + ".jpg";
    }
}

function changeOption(objTarget)
{
objTarget.selectedIndex=0;
}

function hideSign(obj,divID)
{
    var sign=obj.innerHTML;
   if(sign=="↑隐藏详细内容")
   {
    obj.innerHTML="↓显示详细内容";
    $(divID).style.display="none";
    
   }
   if(sign=="↓显示详细内容")
   {
    obj.innerHTML="↑隐藏详细内容";
    $(divID).style.display="";
   }
}
function $(_sId){return document.getElementById(_sId)}