asp.net在线音乐系统,连播

<script language="javascript"> var TotalSongs="<%=Num%>"; function play(){ if(document.Form1.SongList.selectedIndex < 0) alert('请选择你要播放的曲目!'); else{ var song; url = document.Form1.SongList.options[document.Form1.SongList.selectedIndex].value; // song="geci.aspx?id=" + ArrID[document.Form1.SongList.selectedIndex]; //document.all.IFrame1.src=song; document.Form1.mPlayer1.URL = url; document.Form1.mPlayer1.controls.play(); showTLab(); return; } } //播放上一首 function Last_OneOK(){ if((document.Form1.SongList.selectedIndex > 0) && (document.Form1.SongList.selectedIndex < TotalSongs)){ document.Form1.SongList.options[document.Form1.SongList.selectedIndex - 1].selected = true; play(); } } //播放下一首 function Next_OneOK(){ if(document.Form1.SongList.selectedIndex >= 0){ if(document.Form1.SongList.selectedIndex < TotalSongs - 1){ document.Form1.SongList.options[document.Form1.SongList.selectedIndex + 1].selected = true; play(); }else{ document.Form1.SongList.options[0].selected = true; play(); } } } function showTLab(){ if(document.Form1.mPlayer1.playState == 1) Next_OneOK(); setTimeout("showTLab()", 5000); } </scrit>