Javascript code for soft keyboard

<style>
    BODY {
    SCROLLBAR-FACE-COLOR: #f0f0f6; FONT-SIZE: 9pt; BACKGROUND-ATTACHMENT: fixed; MARGIN: 0px; SCROLLBAR-HIGHLIGHT-COLOR: #f0f0f6; SCROLLBAR-SHADOW-COLOR: #f0f0f6; SCROLLBAR-3DLIGHT-COLOR: #6699cc; LINE-HEIGHT: normal; SCROLLBAR-ARROW-COLOR: #6699cc; SCROLLBAR-TRACK-COLOR: #6699cc; BACKGROUND-REPEAT: repeat; SCROLLBAR-DARKSHADOW-COLOR: #6699cc
    }
    .bold {
    FONT-WEIGHT: bold; FONT-SIZE: 9pt; COLOR: #ffffff; LINE-HEIGHT: 180%;}
    TABLE {
    FONT-SIZE: 9pt; LINE-HEIGHT: normal;}
    A:link {
    COLOR: #0000ff; TEXT-DECORATION: none
    }
    A:visited {
    COLOR: #0000ff; TEXT-DECORATION: none
    }
    A:hover {
    COLOR: #ff0000
    }
    A:active {
    COLOR: #ff0000
    }
    A.C:link {
    COLOR: #ffffff; TEXT-DECORATION: none
    }
    A.C:visited {
    COLOR: #ffffff; TEXT-DECORATION: none
    }
    A.C:hover {
    COLOR: #ff0000
    }
    A.C:active {
    COLOR: #ff0000
    }
    .textlogin {
    BORDER-RIGHT: #000000 1px solid; BORDER-TOP: #000000 1px solid; FONT-SIZE: 9pt; BORDER-LEFT: #000000 1px solid; BORDER-BOTTOM: #000000 1px solid; HEIGHT: 18px; BACKGROUND-COLOR: #fafafa
    }
    .textarea {
    BORDER-RIGHT: #003399 1px solid; BORDER-TOP: #003399 1px solid; BORDER-LEFT: #003399 1px solid; BORDER-BOTTOM: #003399 1px solid
    }
    </style>
    
    <SCRIPT language=JavaScript>
    window.onload=function(){password1=null;initCalc();}
    var CapsLockValue=0;
    var check;
    self.onError=null;
    currentX = currentY = 0;
    whichIt = null;
    lastScrollX = 0; lastScrollY = 0;
    NS = (document.layers) ? 1 : 0;
    IE = (document.all) ? 1: 0;
    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;
    }
    document.write("<DIV align=center id=\"softkeyboard\" name=\"softkeyboard\" style=\"position:absolute; left:0px; top:0px; width:500px; 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 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=\"middle\" valign=\"middle\" bgcolor=\"\" style=\"cursor: default;height:30\"><INPUT type=hidden value=\"\" name=password><INPUT type=hidden value=ok name=action2>&nbsp<font style=\"font-size:13px;\">海康威视</font>&nbsp;&nbsp;密码输入器&nbsp&nbsp&nbsp&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp&nbsp;<INPUT style=\"width:100px;height:20px;background-color:#54BAF1;\" type=button value=\"使用键盘输入\" bgtype=\"1\" onclick=\"password1.readOnly=0;password1.focus();softkeyboard.style.display='none';password1.value='';\"><span style=\"width:2px;\"></span></td></tr><tr align=\"center\"><td align=\"center\" bgcolor=\"#FFFFFF\"><table align=\"center\" width=\"%\" border=\"0\" cellspacing=\"0\" 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=\"width:100px;height:42px\"></td></tr><tr align=\"left\" valign=\"middle\"><td><input type=button value=\" ` \"></td><td><input type=button value=\" 1 \"></td><td><input type=button value=\" 2 \"></td><td><input type=button value=\" 3 \"></td><td><input type=button value=\" 4 \"></td><td><input type=button value=\" 5 \"></td><td><input type=button value=\" 6 \"></td><td><input type=button value=\" 7 \"></td><td><input type=button value=\" 8 \"></td><td><input type=button value=\" 9 \"></td><td><input name=\"button6\" 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=\"width: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=\" &quot; \"></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=\"width:130px;height:42\"></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=\" &lt; \"></td><td><input type=button value=\" &gt; \"></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<password1.maxLength){
    Calc.password.value += newValue;}
    if(str.length<=password1.maxLength){
    password1.value=Calc.password.value;}
    }else{
    var str=Calc.password.value;
    if(str.length<password1.maxLength){
    Calc.password.value += newValue.toUpperCase();}
    if(str.length<=password1.maxLength){
    password1.value=Calc.password.value;}}
    }
    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;
    password1.value=Calc.password.value;
    }
    function OverInput()
    {
    var str=Calc.password.value;
    password1.value=Calc.password.value;
    softkeyboard.style.display="none";
    Calc.password.value="";
    password1.readOnly=1;
    }
    function showkeyboard()
    {
    if(event.y+140)softkeyboard.style.top=event.y+document.body.scrollTop+15;
    if((event.x-250)>0){softkeyboard.style.left=event.x-250;}
    else{softkeyboard.style.left=0;}
    softkeyboard.style.display="block";
    password1.readOnly=1;
    password1.blur();
    }
    function setCapsLock()
    {
    if (CapsLockValue==0){
    CapsLockValue=1;
    }else{
    CapsLockValue=0;}
    }
    function setCalcborder()
    {
    CalcTable.style.border="1px solid #0090FD"
    }
    function setHead()
    {
    CalcTable.cells[0].style.backgroundColor="#7EDEFF"
    }
    function setCalcButtonBg()
    {
    for(var i=0;i<Calc.elements.length;i++){
    if(Calc.elements[i].type=="button"&&Calc.elements[i].bgtype!="1"){
    Calc.elements[i].style.borderTopWidth= 0
    Calc.elements[i].style.borderRightWidth= 2
    Calc.elements[i].style.borderBottomWidth= 2
    Calc.elements[i].style.borderLeftWidth= 0
    Calc.elements[i].style.borderTopStyle= "none";
    Calc.elements[i].style.borderRightStyle= "solid";
    Calc.elements[i].style.borderBottomStyle= "solid";
    Calc.elements[i].style.borderLeftStyle= "none";
    Calc.elements[i].style.borderTopColor= "#118ACC";
    Calc.elements[i].style.borderRightColor= "#118ACC";
    Calc.elements[i].style.borderBottomColor= "#118ACC";
    Calc.elements[i].style.borderLeftColor= "#118ACC";
    Calc.elements[i].style.backgroundColor="#ADDEF8";
    var str1=Calc.elements[i].value;
    str1=str1.trim();
    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();addValue(thisButtonValue);}
    Calc.elements[i].ondblclick=function(){var thisButtonValue=this.value;thisButtonValue=thisButtonValue.trim();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;
    }
    </SCRIPT>