JavaScript实现搜索框点击文字消失与失焦恢复

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
</head>

<body>
<input id="text" type="text" value="点我就消失"/>
<script>
var oText=document.getElementById("text");
var onoff=true;
oText.color="#000";
oText.onfocus=function(){
if(onoff){
this.value="";
this.color="red";
onoff=false;
}
}

oText.onblur=function(){
if(this.value==''){
this.color="#000";
this.value="点我就消失";
onoff=true;
}
}
</script>
</body>
</html>