<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>搜索框效果_www.jb200.com</title>
<script type="text/
javascript">
function iniEvent() {
var txtSearch = document.getElementById("txtSearch");
txtSearch.onfocus = function () {
if (this.value == "请输入关键字" || this.value == "") {
this.value = "";
this.style.color = "black"; //修改
文本框字体颜色
}
}
txtSearch.onblur = function () {
if (this.value == "请输入关键字" || this.value == "") {
this.value = "请输入关键字";
this.style.color = "red"; //修改文本框字体颜色
}
else {
this.style.color = "black";
}
}
}
</script>
</head>
脚本学堂 www.jb200.com
<body onload="iniEvent()">
<!--文字离开如果文本框为空则显示红色的"请输入关键字"-->
<!--<label for="txtSearch">查找</label><input type="text" id="txtSearch" value="请输入关键字" style="color:red" />-->
查找<input type="text" id="txtSearch" value="请输入关键字" style="color:red" /><br /><input type="text" />
</body>
</html>
