<title>JavaScript為input/textarea自定義hover,focus效果</title><script type="text/javascript">function suckerfish(type, tag, parentId) { if (window.attachEvent) { window.attachEvent("onload", function() { var sfEls = (parentId==null)?document.getElementsByTagName(tag):document.getElementById(parentId).getElementsByTagName(tag); type(sfEls); }); } } sfHover = function(sfEls) { for (var i=0; i < sfEls.length; i++) { sfEls[i].onmouseover=function() { this.className+=" iptHover"; } sfEls[i].onmouseout=function() { this.className=this.className.replace(new RegExp(" iptHover//b"), ""); } } } sfFocus = function(sfEls) { for (var i=0; i < sfEls.length; i++) { sfEls[i].onfocus=function() { this.className+=" iptFocus"; } sfEls[i].onblur=function() { this.className=this.className.replace(new RegExp(" iptFocus//b"), ""); } } }</script><style type="text/css">textarea{border:1px solid #BBE1F1;width:250px;height:80px;} .iptHover,input:hover,textarea:hover{border:1px solid #77C2E3;}.iptFocus,input:focus,textarea:focus{border:1px solid #77C2E3;background-color:#EFF7FF;}</style><input type="text" name="textfield" /><br /><textarea name="textarea"></textarea><script type="text/javascript">suckerfish(sfHover, "input");suckerfish(sfFocus, "input");suckerfish(sfHover, "textarea");suckerfish(sfFocus, "textarea");</script>