HTML中輸入框自動切換到下一個，輸入框自動切換
最近看了部關於喬布斯的電影，感覺裡面的電影情節還是很棒的。
就是軟體開發人員一定要考慮到使用者的感受，一定要能非常簡單的使用起來。
最近感覺公司的一些平台還是存在很多不好使用的地方。比如輸入IP的輸入框。
現在的設計是需要使用者輸入焦點號。
我想能不能設計成類似於windows的那種輸入的方式。
設計為四個輸入框，其中點號已經添加進去了。
其中那一段指令碼必須要放入body內，否則無法識別到這個函數
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"><title>IP添加方式改變</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body><form id="myForm"><table align="center" border="1px" cellpadding="0" cellspacing="0"><tr><td align="center">IP添加方式</td></tr><tr><td><input tabindex="1" type="text" size="3" maxlength="3" onkeyup="checkLen(this,this.value)" onkeypress="return checkNum(event)" />.<input tabindex="2" type="text" size="3" maxlength="3"onkeyup="checkLen(this,this.value)" onkeypress="return checkNum(event)" />.<input tabindex="3" type="text" size="3" maxlength="3"onkeyup="checkLen(this,this.value)" onkeypress="return checkNum(event)"/>.<input tabindex="4" type="text" size="3" maxlength="3"onkeyup="checkLen(this,this.value)" onkeypress="return checkNum(event)"/></td></tr></table></form></body><script type="text/javascript"> function checkLen(x, y) { if (y.length == x.maxLength) {var next = x.tabIndex;//是否到了最後一個文字框if (next < document.getElementById("myForm").length) {document.getElementById("myForm").elements[next].focus();}}}
function checkNum(e){var keynumvar keycharvar numcheckif(window.event) // IE{keynum = e.keyCode}else if(e.which) // Netscape/Firefox/Opera{keynum = e.which}keychar = String.fromCharCode(keynum)numcheck = /\d/;return numcheck.test(keychar)}</script></html>
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