实例如下：
//定义当前是否大写的状态
window.onload=
function()
{
password1=null;
initCalc();
}
var CapsLockValue=0;
var check;
function setVariables() {
tablewidth=630; // logo width, in pixels
tableheight=20; // logo height, in pixels
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 (check) {
objectXY="softkeyboard";
var availableX=eval(innerW);
var availableY=eval(innerH);
var currentX=eval(offsetX);
var currentY=eval(offsetY);
x=availableX-tablewidth+currentX;
//y=availableY-tableheight+currentY;
y=currentY;
evalMove();
}
setTimeout("checkLocation()",0);
}
function evalMove() {
//eval(docStyle + objectXY + styleDoc + horz + "=" + x);
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) {
check = false;
if(IE) {
whichIt = event.srcElement;
while (whichIt.id.indexOf("softkeyboard") == -1) {
whichIt = whichIt.parentElement;
if (whichIt == null) { return true; } }
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) {
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; }
// if(NS || IE) action = window.setInterval("heartBeat()",1);
document.write("
")
//给输入的密码框添加新值
function addValue(newValue)
{
if (CapsLockValue==0)
{
var str=Calc.password.value;
if(str.length0)
{
softkeyboard.style.left=event.x-250;
}
else
{
softkeyboard.style.left=0;
}
softkeyboard.style.display="block";
password1.readOnly=1;
password1.blur();
//password1.value="";
}
//设置是否大写的值
function setCapsLock()
{
if (CapsLockValue==0)
{
CapsLockValue=1
// Calc.showCapsLockValue.value="当前是大写 ";
}
else
{
CapsLockValue=0
// Calc.showCapsLockValue.value="当前是小写 ";
}
}
function setCalcborder()
{
CalcTable.style.border="1px solid #0090FD"
}
function setHead()
{
CalcTable.cells[0].style.backgroundColor="#7EDEFF"
}
function setCalcButtonBg()
{
for(var i=0;i="a"&&char<="z"&&char.length==1)
{
Calc.elements[i].value=" "+String.fromCharCode(char.charCodeAt(0)-32)+" "
}
}
}
else
{
for(var i=0;i="A"&&char<="Z"&&char.length==1)
{
Calc.elements[i].value=" "+String.fromCharCode(char.charCodeAt(0)+32)+" "
}
}
}
capsLockFlag=!capsLockFlag;
}
以上就是小编为大家带来的js 弹出虚拟键盘修改密码的简单实例全部内容了，希望大家多多支持脚本之家~