倒计时
<time id="djs_time">30</time>
</div>
<script type="text/javascript">
var djs = function(option) {
this.overtime = 30;
this.showtime = 30;
this.timeObj;
this.option = option;
};
djs.prototype = {
start:function(overtime,showtime) {
this.overtime = +overtime;
this.showtime = +showtime;
this.clear();
this.option.div.style.visibility = 'visible';
this.timefun();
},
stop:function() {
if(this.timeObj != null){
clearTimeout(this.timeObj);
this.timeObj = null;
}
},
clear:function() {
if(this.timeObj != null){
clearTimeout(this.timeObj);
this.option.div.style.visibility = 'hidden';
this.timeObj = null;
}
},
cont:function() {
if(this.timeObj == null){
this.timefun();
}
},
timefun:function() {
this.overtime -- ;
this.option.time.innerText = this.overtime;
if (this.overtime == 0){
console.log('time over!');
this.clear();
} else {
this.timeObj = setTimeout(arguments.callee.bind(this),1000);
}
},
init:function(){
}
};
var busiDjs;
function start(){
var time = document.getElementById('djs_time'),
div = document.getElementById('djs_div');
busiDjs = new djs({
time:time,
div:div
});
busiDjs.start(30,30);
};
function stop(){
busiDjs.stop();
};
function cont(){
busiDjs.cont();
};
function clear1(){
busiDjs.clear();
};
</script>
<button onclick="start()">start</button>
<button onclick="stop()">stop</button>
<button onclick="cont()">continue</button>
<button onclick="clear1()">clear</button>
