一款比较好用的JS密码输入脚本，效果图如下：
代码如下：
<html>
<head>
<script>
/*js文件*/
window.onload=function()
{
userpswdvalue=null;
initCalc();
}
var userpswdvalue;
var CapsLockValue=0;
var checkSoftKey;
var pIsPWD=false;
var hidekeyboard=true;
var ps;
function setVariables()
{
tablewidth=630;
tableheight=20;
if (navigator.appName == "Netscape")
{
horz=".left";
vert=".top";
docStyle="document.";
styleDoc="";
innerW="window.innerWidth";
innerH="window.innerHeight";
offsetX="window.pageXOffset";
offsetY="window.pageYOffset";
}
else
{
horz=".pixelLeft";
vert=".pixelTop";
docStyle="";
styleDoc=".style";
innerW="document.body.clientWidth";
innerH="document.body.clientHeight";
offsetX="document.body.scrollLeft";
offsetY="document.body.scrollTop";
}
}
function checkLocation()
{
if (checkSoftKey)
{
objectXY="softkeyboard";
var availableX=eval(innerW);
var availableY=eval(innerH);
var currentX=eval(offsetX);
var currentY=eval(offsetY);
x=availableX-tablewidth+currentX;
y=currentY;
evalMove();
}
setTimeout("checkLocation()",0);
}
function evalMove()
{
eval(docStyle + objectXY + styleDoc + vert + "=" + y);
}
self.onError=null;
currentX = currentY = 0;
whichIt = null;
lastScrollX = 0; lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;
function heartBeat()
{
if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }
if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }
if(diffY != lastScrollY)
{
percent = .1 * (diffY - lastScrollY);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.softkeyboard.style.pixelTop += percent;
if(NS) document.softkeyboard.top += percent;
lastScrollY = lastScrollY + percent;}
if(diffX != lastScrollX) {
percent = .1 * (diffX - lastScrollX);
if(percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
if(IE) document.all.softkeyboard.style.pixelLeft += percent;
if(NS) document.softkeyboard.left += percent;
lastScrollX = lastScrollX + percent; } }
function checkFocus(x,y) {
stalkerx = document.softkeyboard.pageX;
stalkery = document.softkeyboard.pageY;
stalkerwidth = document.softkeyboard.clip.width;
stalkerheight = document.softkeyboard.clip.height;
if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true;
else return false;}
function grabIt(e) {
checkSoftKey = false;
if(IE) {
whichIt = event.srcElement;
while (whichIt.id!=null&&whichIt.id.indexOf("softkeyboard") == -1) {
whichIt = whichIt.parentElement;
if (whichIt == null) { return true; } }
if(whichIt.style!=null){
whichIt.style.pixelLeft = whichIt.offsetLeft;
whichIt.style.pixelTop = whichIt.offsetTop;
}
currentX = (event.clientX + document.body.scrollLeft);
currentY = (event.clientY + document.body.scrollTop);
} else {
window.captureEvents(Event.MOUSEMOVE);
if(checkFocus (e.pageX,e.pageY)) {
whichIt = document.softkeyboard;
StalkerTouchedX = e.pageX-document.softkeyboard.pageX;
StalkerTouchedY = e.pageY-document.softkeyboard.pageY;} }
return true; }
function moveIt(e) {
if (whichIt == null) { return false; }
if(IE) {
if(whichIt.style!=null){
newX = (event.clientX + document.body.scrollLeft);
newY = (event.clientY + document.body.scrollTop);
distanceX = (newX - currentX); distanceY = (newY - currentY);
currentX = newX; currentY = newY;
whichIt.style.pixelLeft += distanceX;
whichIt.style.pixelTop += distanceY;
if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop;
if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft;
if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
event.returnValue = false;
}
} else {
whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
return false;}
return false; }
function dropIt() {whichIt = null;
if(NS) window.releaseEvents (Event.MOUSEMOVE);
return true; }
if(NS) {window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
window.onmousedown = grabIt;
window.onmousemove = moveIt;
window.onmouseup = dropIt; }
if(IE) {
document.onmousedown = grabIt;
document.onmousemove = moveIt;
document.onmouseup = dropIt; }
var style1="<style>";
style1+=".btn_letter {BORDER-RIGHT: 1px solid; PADDING-RIGHT: 1px; BORDER-TOP: 1px solid; PADDING-LEFT: 2px;FONT-SIZE: 14px; BORDER-LEFT: 1px solid; CURSOR: hand;PADDING-TOP: 1px; BORDER-BOTTOM: 1px solid; 25px; height:20px;BORDER-LEFT-COLOR: #7b9ebd; FILTER: progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr=#ffffff, EndColorStr=#DDDCDC); BORDER-BOTTOM-COLOR: #5c08b2; COLOR: #075bc3; BORDER-TOP-COLOR: #7b9ebd; BORDER-RIGHT-COLOR: #5c08b2}";
style1+=".btn_num {25px;BORDER-RIGHT:1px solid; PADDING-RIGHT: 1px; BORDER-TOP: 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; BORDER-LEFT: 1px solid; CURSOR: hand; PADDING-TOP: 1px; BORDER-BOTTOM: 1px solid;height:20px;BORDER-LEFT-COLOR: #7ebf4f; FILTER: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, StartColorStr=#ffffff, EndColorStr=#B3D997); BORDER-BOTTOM-COLOR: #7ebf4f; COLOR: black; BORDER-TOP-COLOR: #7ebf4f; BORDER-RIGHT-COLOR: #7ebf4f}";
style1+=".table_title {FILTER: progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr=#B2DEF7, EndColorStr=#7AB7DA); height:26px;padding-top: 3px;}";
style1+=".btn_input {BORDER-RIGHT: #2C59AA 1px solid; PADDING-RIGHT: 2px; BORDER-TOP: #2C59AA 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 12px; FILTER: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, StartColorStr=#ffffff, EndColorStr=#C3DAF5); BORDER-LEFT: #2C59AA 1px solid; CURSOR: hand; COLOR: black; PADDING-TOP: 2px; BORDER-BOTTOM: #2C59AA 1px solid}";
style1+="TD {FONT: 12px 宋体,Tahoma; COLOR: #505050}</style>";
document.write(style1);
document.write("<DIV align=center id="softkeyboard" name="softkeyboard" style="position:absolute; left:0px; top:0px; 400px; z-index:180;display:none"><table id="CalcTable" width="" border="0" align="center" cellpadding="0" cellspacing="0" bgcolor=""><FORM id=Calc name=Calc action="" method=post autocomplete="off"><tr><td class="table_title" title="尊敬的客户：为了保证网上密码安全,建议使用密码输入器输入密码!" align="right" valign="middle" bgcolor="" style="cursor: default;height:30"><INPUT type=hidden value="" name=password><INPUT type=hidden value=ok name=action2> <font style="font-weight:bold; font-size:13px; color:#075BC3">仿建行JS键盘 密码输入器</font>                 <INPUT id=useKey class="btn_input" type=button value="使用键盘输入" bgtype="1" onclick="userpswdvalue.readOnly=0;userpswdvalue.focus();closekeyboard();userpswdvalue.value='';"><span style="2px;"></span></td></tr><tr align="center"><td align="center" bgcolor="#FFFFFF"><table align="center" width="%" border="0" cellspacing="1" cellpadding="0">
<tr align="left" valign="middle">
<td> <input type=button value=" ~ "></td>
<td> <input type=button value=" ! "></td>
<td> <input type=button value=" @ "></td>
<td> <input type=button value=" # "></td>
<td> <input type=button value=" $ "></td>
<td><input type=button value=" % "></td>
<td><input type=button value=" ^ "></td>
<td> <input type=button value=" & "></td>
<td><input type=button value=" * "></td>
<td><input type=button value=" ( "></td>
<td><input type=button value=" ) "></td>
<td><input type=button value=" _ "></td>
<td> <input type=button value=" + "></td>
<td><input type=button value=" | "></td>
<td colspan="1" rowspan="2"> <input name="button10" type=button value=" 退格" onclick="setpassvalue();" onDblClick="setpassvalue();" style="100px;height:40px">
</td>
</tr>
<tr align="left" valign="middle">
<td><input type=button value=" ` "></td>
<td><input type=button bgtype="2" name="button_number1" value=" 1 "></td>
<td> <input type=button bgtype="2" name="button_number2" value=" 2 "></td>
<td> <input type=button bgtype="2" name="button_number3" value=" 3 "></td>
<td> <input type=button bgtype="2" name="button_number4" value=" 4 "></td>
<td> <input type=button bgtype="2" name="button_number5" value=" 5 "></td>
<td> <input type=button bgtype="2" name="button_number6" value=" 6 "></td>
<td> <input type=button bgtype="2" name="button_number7" value=" 7 "></td>
<td> <input type=button bgtype="2" name="button_number8" value=" 8 "></td>
<td> <input type=button bgtype="2" name="button_number9" value=" 9 "></td>
<td> <input bgtype="2" name="button_number0" type=button value=" 0 "></td>
<td> <input type=button value=" - "></td>
<td> <input type=button value=" = "></td>
<td> <input type=button value=" \ "></td>
<td> </td>
</tr>
<tr align="left" valign="middle">
<td> <input type=button value=" q "></td>
<td> <input type=button value=" w "></td>
<td> <input type=button value=" e "></td>
<td> <input type=button value=" r "></td>
<td> <input type=button value=" t "></td>
<td> <input type=button value=" y "></td>
<td> <input type=button value=" u "></td>
<td> <input type=button value=" i "></td>
<td> <input type=button value=" o "></td>
<td> <input name="button8" type=button value=" p "></td>
<td> <Input name="button9" type=button value=" { "></td>
<td> <input type=button value=" } "></td>
<td> <input type=button value=" [ "></td>
<td> <input type=button value=" ] "></td>
<td><input name="button9" type=button onClick="capsLockText();setCapsLock();" onDblClick="capsLockText();setCapsLock();" value="切换大/小写" style="100px;"></td>
</tr>
<tr align="left" valign="middle">
<td> <input type=button value=" a "></td>
<td> <input type=button value=" s "></td>
<td> <input type=button value=" d "></td>
<td> <input type=button value=" f "></td>
<td> <input type=button value=" g "></td>
<td> <input type=button value=" h "></td>
<td> <input type=button value=" j "></td>
<td> <input name="button3" type=button value=" k "></td>
<td> <input name="button4" type=button value=" l "></td>
<td> <input name="button5" type=button value=" : "></td>
<td> <input name="button7" type=button value=" " "></td>
<td> <input type=button value=" ; "></td>
<td> <input type=button value=" ' "></td>
<td rowspan="2" colspan="2"> <input name="button12" type=button onclick="OverInput();" value=" 确定 " style="126px;height:42px;"></td>
</tr>
<tr align="left" valign="middle">
<td><input name="button2" type=button value=" z "></td>
<td> <input type=button value=" x "></td>
<td> <input type=button value=" c "></td>
<td> <input type=button value=" v "></td>
<td> <input type=button value=" b "></td>
<td> <input type=button value=" n "></td>
<td> <input type=button value=" m "></td>
<td> <input type=button value=" < "></td>
<td> <input type=button value=" > "></td>
<td> <input type=button value=" ? "></td>
<td> <input type=button value=" , "></td>
<td> <input type=button value=" . "></td>
<td> <input type=button value=" / "></td>
</tr>
</table></td></FORM></tr></table></DIV>");
function addValue(newValue)
{
if (CapsLockValue==0)
{
var str=Calc.password.value;
if(str.length<userpswdvalue.maxLength)
{
Calc.password.value += newValue;
}
if(str.length<=userpswdvalue.maxLength)
{
userpswdvalue.value=Calc.password.value;
psuserpswdvalue();
}
}
else
{
var str=Calc.password.value;
if(str.length<userpswdvalue.maxLength)
{
Calc.password.value += newValue;
}
if(str.length<=userpswdvalue.maxLength)
{
userpswdvalue.value=Calc.password.value;
psuserpswdvalue();
}
}
}
function setpassvalue()
{
var longnum=Calc.password.value.length;
var num
num=Calc.password.value.substr(0,longnum-1);
Calc.password.value=num;
var str=Calc.password.value;
userpswdvalue.value=Calc.password.value;
psuserpswdvalue();
}
function OverInput()
{
var str=Calc.password.value;
userpswdvalue.value=Calc.password.value;
removeJiamiName();
psuserpswdvalue();
closekeyboard();
Calc.password.value="";
userpswdvalue.readOnly=1;
}
function closekeyboard(theForm)
{
softkeyboard.style.display="none";
if(null!=unhideSelect){
unhideSelect();
}
}
function showkeyboard()
{
randomNumberButton();
var th = userpswdvalue;
var ttop = th.offsetTop;
var thei = th.clientHeight;
var tleft = th.offsetLeft;
var ttyp = th.type;
while (th = th.offsetParent){ttop+=th.offsetTop; tleft+=th.offsetLeft;}
softkeyboard.style.top = ttop+thei+16;
softkeyboard.style.left = tleft-100;
softkeyboard.style.display="block";
userpswdvalue.readOnly=1;
userpswdvalue.blur();
document.all.useKey.focus();
if(null!=hideSelect){
hideSelect();
}
}
function setCapsLock()
{
if (CapsLockValue==0)
{
CapsLockValue=1
}
else
{
CapsLockValue=0
}
}
function setCalcborder()
{
CalcTable.style.border="1px solid #B5ADF1"
}
function setHead()
{
CalcTable.cells[0].style.backgroundColor="#B5ADF1"
}
function setCalcButtonBg()
{
for(var i=0;i<Calc.elements.length;i++)
{
if(Calc.elements[i].type=="button"&&Calc.elements[i].bgtype!="1")
{
if(Calc.elements[i].bgtype=="2"){
Calc.elements[i].className="btn_num";
}else{
Calc.elements[i].className="btn_letter";
}
var str1=Calc.elements[i].value;
str1=str1.trim();
if(str1.length==1)
{
}
var thisButtonValue=Calc.elements[i].value;
thisButtonValue=thisButtonValue.trim();
if(thisButtonValue.length==1)
{
Calc.elements[i].onclick=
function ()
{
var thisButtonValue=this.value;
thisButtonValue=thisButtonValue.trim();
thisButtonValue=jiamiMimaKey(thisButtonValue);
addValue(thisButtonValue);
}
Calc.elements[i].ondblclick=
function ()
{
var thisButtonValue=this.value;
thisButtonValue=thisButtonValue.trim();
thisButtonValue=jiamiMimaKey(thisButtonValue);
addValue(thisButtonValue);
}
}
}
}
}
function initCalc()
{
setCalcborder();
setHead();
setCalcButtonBg();
}
String.prototype.trim = function()
{
return this.replace(/(^s*)|(s*$)/g, "");
}
var capsLockFlag;
capsLockFlag=true;
function capsLockText()
{
if(capsLockFlag)
{
for(var i=0;i<Calc.elements.length;i++)
{
var char=Calc.elements[i].value;
var char=char.trim()
if(Calc.elements[i].type=="button"&&char>="a"&&char<="z"&&char.length==1)
{
Calc.elements[i].value=" "+String.fromCharCode(char.charCodeAt(0)-32)+" "
}
}
}
else
{
for(var i=0;i<Calc.elements.length;i++)
{
var char=Calc.elements[i].value;
var char=char.trim()
if(Calc.elements[i].type=="button"&&char>="A"&&char<="Z"&&char.length==1)
{
Calc.elements[i].value=" "+String.fromCharCode(char.charCodeAt(0)+32)+" "
}
}
}
capsLockFlag=!capsLockFlag;
}
function randomNumberButton(){
var a = new Array(10);
a[0]=0;a[1]=1;a[2]=2;a[3]=3;a[4]=4;a[5]=5;a[6]=6;a[7]=7;a[8]=8;a[9]=9;
var randomNum;
var times=10;
for(var i=0;i<10;i++){
randomNum = parseInt(Math.random()*10);
var tmp=a[0];
a[0]=a[randomNum];
a[randomNum]=tmp;
}
Calc.button_number0.value=" "+a[0]+" ";
Calc.button_number1.value=" "+a[1]+" ";
Calc.button_number2.value=" "+a[2]+" ";
Calc.button_number3.value=" "+a[3]+" ";
Calc.button_number4.value=" "+a[4]+" ";
Calc.button_number5.value=" "+a[5]+" ";
Calc.button_number6.value=" "+a[6]+" ";
Calc.button_number7.value=" "+a[7]+" ";
Calc.button_number8.value=" "+a[8]+" ";
Calc.button_number9.value=" "+a[9]+" ";
}
function hideSelect(){
var i=0;
while(i<document.getElementsByTagName("select").length){
document.getElementsByTagName("select")[i].style.visibility = "hidden";
i=i+1;
}
}
function unhideSelect(){
var i=0;
while(i<document.getElementsByTagName("select").length){
document.getElementsByTagName("select")[i].style.visibility = "visible";
i=i+1;
}
}
function jiamiMimaKey(newValue) {
if (typeof(b) == "undefined" || typeof(ifUseYinshe) == "undefined" || ifUseYinshe == 0) {return newValue;}
var everyone = '';
var afterPass = '';
for (var i=0;i<newValue.length;i++ ) {
everyone = newValue.charAt(i);
for (var j =0;j<((b.length)/2);j++) {
if (everyone == b[2*j]) {
afterPass = afterPass + b[2*j+1];
break;
}
}
}
newValue= afterPass;
if (typeof(jiami) != "undefined"){
jiami = 1;
}
return afterPass;
}
function removeJiamiName() {
var jiamiObjectname = userpswdvalue.name;
var jiamiObjectnameBefore = jiamiObjectname + ',';
var jiamiObjectnameAll = ','+jiamiObjectname + ',';
if (typeof(keyjiamiName) != "undefined") {
if (keyjiamiName.indexOf(jiamiObjectnameBefore) == 0) {
keyjiamiName = keyjiamiName.substring(jiamiObjectnameBefore.length);
} else if (keyjiamiName.indexOf(jiamiObjectnameAll) != -1) {
keyjiamiName.replace(jiamiObjectnameBefore,',');
}
}
}
function psuserpswdvalue(){
var passwd=userpswdvalue.value;
var PWD=document.getElementsByName("PWD");
if(PWD!=null && ps!=null && pIsPWD) {
ps.update(getStartPassword(passwd));
}
}
</script>
</head>
<body>
<input type="password" ID="txtPassword_I" Width="161px" BorderColor="#7F9DB9" BorderStyle="Solid"
onfocus="if (hidekeyboard) {
hidekeyboard=false;userpswdvalue=this;showkeyboard();this.readOnly=1;document.getElementById
('Calc').password.value='';};"
onchange="Calc.password.value=this.value;keyjiami=0;jiami = 0"
onclick="userpswdvalue=this;showkeyboard();this.readOnly=1;Calc.password.value=''"
onkeyup="if(event.keyCode==9){userpswdvalue=this;showkeyboard();this.readOnly=1;Calc.password.value=''}"
onKeyDown="Calc.password.value=this.value;"
BorderWidth="1pt" Height="20px"></asp:TextBox>
</body>
</html>