function doVC() {
var b_vc=document.getElementById("vc")
if (b_vc) {
document.getElementById("vc").value="";
	}

b_vc=document.getElementById("vc2")
if (b_vc) {
document.getElementById("vc2").value="";
	}

b_vc=document.getElementById("vc3")
if (b_vc) {
document.getElementById("vc3").value="";
	}

}

function loadFrame(){
    $("#liteloading").remove();
    $("#lite-content").show();
}
 
function activeFrame(){
    if (document.all) {
        top.frames[0].focus();
    }
    else {
        $("#liteFrame").focus();
    }
}
 
function liteFrame(liteWidth, liteHeight, url, captionStr){
 
    marginLeft = -liteWidth / 2;
    marginTop = -liteHeight / 2;
     
    //lite show append
    $liteOverlay = "<div id='lite-overlay'><div id='liteloading'></div></div>";
    $liteContent = "<div id='lite-content' style='width:" + liteWidth + "px;height:" + (liteHeight + 30) + "px;margin-left:" + marginLeft + "px;margin-top:" + marginTop + "px;width:" + (liteWidth) + "px;'><div class='liteTitle'>" + captionStr + "</div><div class='liteClose'>关闭</div><iframe name='liteFrame' id='liteFrame' src='" + url + "' style='width:" + liteWidth + "px;height:" + liteHeight + "px;' frameborder='0' scrolling='no' onload='loadFrame();activeFrame()'></iframe></div>"
    $("body").append($liteOverlay);
    $("#lite-overlay").append($liteContent);
     
    $(".liteClose").click(function(){
        $("#lite-overlay").remove();
        $("#lite-content").remove();
    });
}

function gosamples(){
  liteFrame(710,600,"/__CDS/","数据样本");
}

var k = [];
  document.onkeydown = function(e){
  e = e || window.event;
  k.push(e.keyCode);
  if (k.toString().indexOf("38,38,40,40,37,39,37,39,66,65") >= 0) {
    liteFrame(391,460,"/__Res/snake.htm", "<a href=http://35007.net>^_^</a> - 贪吃蛇(Snake) - 按键盘S开始 - Press 'S' to Start</a>");
    k = [];
  }
}