本文實(shí)例講述了JavaScript實(shí)現(xiàn)文本框中默認(rèn)顯示背景圖片在獲得焦點(diǎn)后消失的方法。分享給大家供大家參考。具體如下：
html代碼：
<form name="searchform" id="search-form"> <div> <b>Search</b> <input type="text" name="txtInput" title="Enter the terms you wish to search for." /> <input type="submit" value="GO!" class="submit" style="cursor: pointer;" /> </div></form>
JS代碼：
<script type="text/javascript" language="javascript"> (function() { var id = document.getElementById('search-form'); if (id && id.txtInput) { var name = id.txtInput; var unclicked = function() { if (name.value == '') { name.style.background = '#FFFFFF url(images/googbg.png) left no-repeat'; } }; var clicked = function() { name.style.background = '#ffffff'; }; name.onfocus = clicked; name.onblur = unclicked; unclicked(); } })();</script>希望本文所述對(duì)大家的javascript程序設(shè)計(jì)有所幫助。
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