javascript,搜索框效果本文实例讲述了javascript搜索框效果实现方法。分享给大家供大家参考。具体实现方法如下： <!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><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>搜索框效果</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><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>希望本文所述对大家的javascript程序设计有所帮助。
javascript,搜索框效果
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