JS控制按钮10秒钟后可用的方法_javascript技巧

function start()
{
 document.getElementById("Button1").disabled = true;
 document.getElementById("Button1").value = 10;
 window.setTimeout("tick()",1000);
}
function tick()
{
 var time = new Number(document.getElementById("Button1").value);
 if(time>0)
 {
 document.getElementById("Button1").value = time-1;
 window.setTimeout("tick()",1000);
 }
 else
 {
 document.getElementById("Button1").disabled = false;
 document.getElementById("Button1").value = "保存";
 }
}