var flags = 0; //变量放错位置,把它设置为全局变量就可以控制只执行一次
function openplay()
{
if(flags==0){
var ems = document.createElement("embed");
ems.autostart="1" ;
ems.src="http://www.???.com/mp3/7.wav";
document.documentElement.appendChild(ems);
flags=1;
}
}
function openplay()
{
if(flags==0){
var ems = document.createElement("embed");
ems.autostart="1" ;
ems.src="http://www.???.com/mp3/7.wav";
document.documentElement.appendChild(ems);
flags=1;
}
}
{
var obj=document.getElementById("ems");
if(obj)
{
document.documentElement.removeChild(obj);
}
var ems = document.createElement("embed");
ems.setAttribute("id","ems");
ems.autostart="1" ;
ems.src="http://www.???.com/mp3/7.wav";
document.documentElement.appendChild(ems);
}