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表单特效 中的 表单填写提示


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表单填写提示 - 软晨网(RuanChen.com)

演示

用户名: [?]
密码: [?]

第一步:将以下代码放入head区域

<style type="text/css"> #hintbox{ /*CSS for pop up hint box */ position:absolute; top: 0; background-color: lightyellow; width: 150px; /*Default width of hint.*/ padding: 3px; border:1px solid black; font:normal 11px Verdana; line-height:18px; z-index:100; border-right: 3px solid black; border-bottom: 3px solid black; visibility: hidden; } .hintanchor{ /*CSS for link that shows hint onmouseover*/ font-weight: bold; color: navy; margin: 3px 8px; } </style> <script type="text/javascript"> /*********************************************** * Show Hint script- ? Dynamic Drive (www.dynamicdrive.com) * This notice MUST stay intact for legal use * Visit http://www.dynamicdrive.com/ for this script and 100s more. ***********************************************/ var horizontal_offset="9px" //horizontal offset of hint box from anchor link /////No further editting needed var vertical_offset="0" //horizontal offset of hint box from anchor link. No need to change. var ie=document.all var ns6=document.getElementById&&!document.all function getposOffset(what, offsettype){ var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop; var parentEl=what.offsetParent; while (parentEl!=null){ totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop; parentEl=parentEl.offsetParent; } return totaloffset; } function iecompattest(){ return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body } function clearbrowseredge(obj, whichedge){ var edgeoffset=(whichedge=="rightedge")? parseInt(horizontal_offset)*-1 : parseInt(vertical_offset)*-1 if (whichedge=="rightedge"){ var windowedge=ie && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-30 : window.pageXOffset+window.innerWidth-40 dropmenuobj.contentmeasure=dropmenuobj.offsetWidth if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure) edgeoffset=dropmenuobj.contentmeasure+obj.offsetWidth+parseInt(horizontal_offset) } else{ var windowedge=ie && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18 dropmenuobj.contentmeasure=dropmenuobj.offsetHeight if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure) edgeoffset=dropmenuobj.contentmeasure-obj.offsetHeight } return edgeoffset } function showhint(menucontents, obj, e, tipwidth){ if ((ie||ns6) && document.getElementById("hintbox")){ dropmenuobj=document.getElementById("hintbox") dropmenuobj.innerHTML=menucontents dropmenuobj.style.left=dropmenuobj.style.top=-500 if (tipwidth!=""){ dropmenuobj.widthobj=dropmenuobj.style dropmenuobj.widthobj.width=tipwidth } dropmenuobj.x=getposOffset(obj, "left") dropmenuobj.y=getposOffset(obj, "top") dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+obj.offsetWidth+"px" dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+"px" dropmenuobj.style.visibility="visible" obj.onmouseout=hidetip } } function hidetip(e){ dropmenuobj.style.visibility="hidden" dropmenuobj.style.left="-500px" } function createhintbox(){ var divblock=document.createElement("div") divblock.setAttribute("id", "hintbox") document.body.appendChild(divblock) } if (window.addEventListener) window.addEventListener("load", createhintbox, false) else if (window.attachEvent) window.attachEvent("onload", createhintbox) else if (document.getElementById) window.onload=createhintbox </script>

第二步:在body区域放入

<form> <b>用户名:</b> <input type="text" class="test" /> <a href="#" class="hintanchor" onMouseover="showhint('请输入用户名. 只能使用阿拉伯数字或是字符.', this, event, '150px')">[?]</a><br /> <b>密码:</b> <input type="text" class="test" /> <a href="#" class="hintanchor" onMouseover="showhint('请输入密码. <b>必须</b> 大雨8个字符.', this, event, '200px')">[?]</a><br /> </form>

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