javascript学习(十):cdkey输入框的实现

<html>   <head>     <title>js24.html</title> 	     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">     <meta http-equiv="description" content="this is my page">     <meta http-equiv="content-type" content="text/html; charset=UTF-8">          <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->   	<script type="text/javascript"> 	 	function moveNext(object, index) 	{ 		if(object.value.length == 4) 		{ 			document.forms[0].elements[index + 1].focus(); 		} 	} 	 	function showResult() 	{ 		var f = document.forms[0]; 		 		var result = ""; 		 		for(var i = 0; i < 4; i++) 		{ 			result += f.elements[i].value; 		} 		 		alert(result); 		 	} 	 	</script>   </head>      <body onload="document.forms[0].elements[0].focus();">          <form>          <input type="text" size="3" maxlength="4" onkeyup="moveNext(this, 0);">-     <input type="text" size="3" maxlength="4" onkeyup="moveNext(this, 1);">-     <input type="text" size="3" maxlength="4" onkeyup="moveNext(this, 2);">-     <input type="text" size="3" maxlength="4" onkeyup="moveNext(this, 3);">          <input type="button" value="显示"  >      </form>  </body> </html> 

你可能感兴趣的:(javascript学习(十):cdkey输入框的实现)