按下Enter焦点移至下一个控件的实现js代码

2019-11-20 21:29:12

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来源：转载

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<html> 
<head> 
<title>Enter2Tab</title> 
<script type="text/javascript"> 
window.onload=function(){ 
var list = new Array(); 
for(var i=5;i<document.all.length;i++) 
{ 
if(document.all[i].type=="text"||document.all[i].tagName=="SELECT") 
list.push(i); 
} 

for(var i=0;i<list.length-1;i++) 
{ 
document.all[list[i]].setAttribute("nextFocusIndex",list[i+1]); 
document.all[list[i]].onkeydown=JumpToNext; 
} 
for(var i=list.length-1;i<document.all.length;i++) 
{ 
if(document.all[i].type=="button") 
{ 
document.all[list[list.length-1]].setAttribute("nextFocusIndex",i); 
document.all[list[list.length-1]].onkeydown=JumpToNext; 
break; 
} 
} 
document.all[list[0]].focus(); 
} 
function JumpToNext(){ 
if(event.keyCode==13) 
{ 
var nextFocusIndex=this.getAttribute("nextFocusIndex"); 
document.all[nextFocusIndex].focus(); 
} 
} 
</script> 
</head> 
<body> 
<input id="A" name="A" type="text" /> 
<input id="B" name="B" type="text" /> 
<input id="C" name="C" type="text" /> 
<input id="D" name="D" type="text" /> 
<input id="E" name="E" type="text" /> 
<select id="S1" name="S1"> 
<option>1</option> 
<option>2</option> 
<option>3</option> 
<option>4</option> 
<option>5</option> 
</select> 
<select id="S2" name="S2"> 
<option>1</option> 
<option>2</option> 
<option>3</option> 
<option>4</option> 