文本框内显示文本提示,当点击后提示消失! 实现代码: <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>test</title> <script type="text/javascript"><!-- var account_tip = "描述"; //鼠标进入文本时间 function init_value() { var bs = document.getElementById("Txt_remark"); if (bs.value.length == 0 || bs.value == account_tip) { bs.value = ""; } } //鼠标移出 function init_over() { var bs = document.getElementById("Txt_remark"); if (bs.value.length == 0 || bs.value == account_tip) { bs.value = account_tip; } } // --></script> </head> <body> <input ID="Txt_remark" value="描述" onfocus="init_value()" onblur="init_over()" /> </body> </html>