<script>var timervar Opacity = 0function hide() { oDiv.style.display = "block" oDiv.style.height = document.body.scrollHeight Opacity = 0 event.srcElement.blur() oFrame.document.open() oFrame.document.write("<body bgcolor='darkgray'>") timer = window.setInterval("aa()", 5)}
function aa(){ if (Opacity == 50) { window.clearInterval(timer) oButton.style.display = "block" return } Opacity = ( Opacity + 3 ) > 50 ? 50 : Opacity + 3 oDiv.style.filter = "Alpha(Opacity=" + Opacity + ")"}
function bb(){ if (Opacity == 0) { window.clearInterval(timer) oDiv.style.display = "none" return } Opacity = (Opacity - 3 < 0) ? 0 : Opacity - 3 oDiv.style.filter = "Alpha(Opacity=" + Opacity + ")" }
function cc(){ timer = window.setInterval('bb()', 5); oButton.style.display='none';}</script><body topmargin=0 leftmargin=0><div id=oDiv style="position:absolute;z-index:99; background-color:darkgray; Filter: Alpha(Opacity=0); border:1px solid #333333;display:none;width:100%;vertical-align:center;text-align:center"><iframe name="oFrame" src="" style="width:100%; height:100%; background-color:darkgray" frameborder=0></iframe></div><button οnclick=hide()>hide</button><select><option>下拉框</option></select><div id="oButton" style="position:absolute; left:100;top:200;z-index:100;display:none"><button οnclick="cc()">确定</button></div><script> for (var i=0; i<30; i++) document.write ("<p>123</p>")</script>
