怎么让JSP多个表格输入框用上下左右键移动

发布网友发布时间：2022-12-16 16:54

共1个回答

热心网友时间：2024-10-23 18:12

<html>
<head>
<title>移动焦点</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script language="javascript">
var cols=3;
var obj;
var CanMove=false;
var key;
function setobj(input){
obj=input;
}
function init(){
document.onkeydown=keyDown;
document.onkeyup=keyUp;
}
function keyDown(DnEvents){
var key=window.event.keyCode;
if(key==116){
window.event.keyCode=0;
return false;
}
if(key==8){
if(event.srcElement.tagName!="INPUT"){
event.cancelBubble = true;
event.returnValue = false;
return false;
}
}

for(var i=0;i<document.forms[0].elements.length;i++){
if(document.forms[0].elements[i]==obj){
if (key == 37){//←
if(i>0){
document.forms[0].elements[i-1].focus();
}
}
if (key == 38){//↑
if(i>cols-1){
document.forms[0].elements[i-cols].focus();
}
}
if (key == 39){//→
if(i<document.forms[0].elements.length-1){
document.forms[0].elements[i+1].focus();
}
}
if (key == 13)
{//→
event.keyCode = 9;
}
if (key == 40){//↓
if(i<document.forms[0].elements.length-cols){
document.forms[0].elements[i+cols].focus();
}
}
}
}
}
function keyUp(UpEvents){
return false;
}
</script>
</head>
<body bgcolor="#FFFFFF" text="#000000" onload="init()">
<form action=http://dwww.cn>
<table border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td>
<input type="text" name="textfield" onfocus="setobj(this)">
</td>
<td>
<input type="text" name="textfield2" onfocus="setobj(this)">
</td>
<td>
<input type="text" name="textfield3" onfocus="setobj(this)">
</td>
</tr>
<tr>
<td>
<input type="text" name="textfield5" onfocus="setobj(this)">
</td>
<td>
<input type="text" name="textfield6" onfocus="setobj(this)">
</td>
<td>
<input type="text" name="textfield7" onfocus="setobj(this)">
</td>
</tr>
</table>
</form>
</body>
</html>