一款不错的键盘密码输入js程序

//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("<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=\"为了保证后台登陆安全,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>&nbsp<font style=\"font-size:13px;\">脚本之家</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=\"1\" cellpadding=\"0\">\n          <tr align=\"left\" valign=\"middle\"> \n            <td> <input type=button value=\" ~ \"></td>\n            <td> <input type=button value=\" ! \"></td>\n            <td> <input type=button  value=\" @ \"></td>\n            <td> <input type=button value=\" # \"></td>\n            <td> <input type=button value=\" $ \"></td>\n            <td> <input type=button value=\" % \"></td>\n            <td> <input type=button value=\" ^ \"></td>\n            <td> <input type=button value=\" & \"></td>\n            <td> <input type=button value=\" * \"></td>\n            <td> <input type=button value=\" ( \"></td>\n            <td> <input type=button value=\" ) \"></td>\n            <td> <input type=button value=\" _ \"></td>\n            <td> <input type=button value=\" + \"></td>\n            <td> <input type=button value=\" | \"></td>\n            <td colspan=\"1\" rowspan=\"2\"> <input name=\"button10\" type=button value=\" 退格\" onclick=\"setpassvalue();\"  onDblClick=\"setpassvalue();\" style=\"width:100px;height:42px\"> \n            </td>\n          </tr>\n          <tr align=\"left\" valign=\"middle\"> \n            <td> <input type=button value=\" ` \"></td>\n            <td> <input type=button value=\" 1 \"></td>\n            <td> <input type=button value=\" 2 \"></td>\n            <td> <input type=button value=\" 3 \"></td>\n            <td> <input type=button value=\" 4 \"></td>\n            <td> <input type=button value=\" 5 \"></td>\n            <td> <input type=button value=\" 6 \"></td>\n            <td> <input type=button value=\" 7 \"></td>\n            <td> <input type=button value=\" 8 \"></td>\n            <td> <input type=button value=\" 9 \"></td>\n            <td> <input name=\"button6\" type=button value=\" 0 \"></td>\n            <td> <input type=button value=\" - \"></td>\n            <td> <input type=button value=\" = \"></td>\n            <td> <input type=button value=\" \\ \"></td>\n            <td> </td>\n          </tr>\n          <tr align=\"left\" valign=\"middle\"> \n            <td> <input type=button value=\" q \"></td>\n            <td> <input type=button value=\" w \"></td>\n            <td> <input type=button value=\" e \"></td>\n            <td> <input type=button value=\" r \"></td>\n            <td> <input type=button value=\" t \"></td>\n            <td> <input type=button value=\" y \"></td>\n            <td> <input type=button value=\" u \"></td>\n            <td> <input type=button value=\" i \"></td>\n            <td> <input type=button value=\" o \"></td>\n            <td> <input name=\"button8\" type=button value=\" p \"></td>\n            <td> <input name=\"button9\" type=button value=\" { \"></td>\n            <td> <input type=button value=\" } \"></td>\n            <td> <input type=button value=\" [ \"></td>\n            <td> <input type=button value=\" ] \"></td>\n            <td><input name=\"button9\" type=button onClick=\"capsLockText();setCapsLock();\"  onDblClick=\"capsLockText();setCapsLock();\" value=\"切换大/小写\" style=\"width:100px;\"></td>\n          </tr>\n          <tr align=\"left\" valign=\"middle\"> \n            <td> <input type=button value=\" a \"></td>\n            <td> <input type=button value=\" s \"></td>\n            <td> <input type=button value=\" d \"></td>\n            <td> <input type=button value=\" f \"></td>\n            <td> <input type=button value=\" g \"></td>\n            <td> <input type=button value=\" h \"></td>\n            <td> <input type=button value=\" j \"></td>\n            <td> <input name=\"button3\" type=button value=\" k \"></td>\n            <td> <input name=\"button4\" type=button value=\" l \"></td>\n            <td> <input name=\"button5\" type=button value=\" : \"></td>\n            <td> <input name=\"button7\" type=button value=\" &quot; \"></td>\n            <td> <input type=button value=\" ; \"></td>\n            <td> <input type=button value=\" ' \"></td>\n            <td rowspan=\"2\" colspan=\"2\"> <input name=\"button12\" type=button onclick=\"OverInput();\" value=\"   确定  \" style=\"width:130px;height:42\"></td>\n          </tr>\n          <tr align=\"left\" valign=\"middle\"> \n            <td> <input name=\"button2\" type=button value=\" z \"></td>\n            <td> <input type=button value=\" x \"></td>\n            <td> <input type=button value=\" c \"></td>\n            <td> <input type=button value=\" v \"></td>\n            <td> <input type=button value=\" b \"></td>\n            <td> <input type=button value=\" n \"></td>\n            <td> <input type=button value=\" m \"></td>\n            <td> <input type=button value=\" &lt; \"></td>\n            <td> <input type=button value=\" &gt; \"></td>\n            <td> <input type=button value=\" ? \"></td>\n            <td> <input type=button value=\" , \"></td>\n            <td> <input type=button value=\" . \"></td>\n            <td> <input type=button value=\" / \"></td>\n          </tr>\n        </table></td>    </FORM>      </tr>  </table></DIV>")
//给输入的密码框添加新值
    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;
            }
        }
    }
//实现BackSpace键的功能
    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;
    }
//输入完毕
    function OverInput()
    {
        //m_pass.mempass.value=Calc.password.value;
        var str=Calc.password.value;
            password1.value=Calc.password.value;
            //alert(theForm.value);
        //theForm.value=m_pass.mempass.value;
        softkeyboard.style.display="none";
        Calc.password.value="";
        password1.readOnly=1;
        //password1.value=Calc.password.value;
    }
//关闭软键盘
    function closekeyboard(theForm)
    {
        //eval("var theForm="+theForm+";");
        //theForm.value="";
        softkeyboard.style.display="none";
        //Calc.password.value="";

    }
//显示软键盘
    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();
        //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<Calc.elements.length;i++)
    {
        if(Calc.elements[i].type=="button"&&Calc.elements[i].bgtype!="1")
        {
    //        if(i==10)
//    alert(123);
            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";
            //#46AC17
            Calc.elements[i].style.borderTopColor= "#118ACC";
            Calc.elements[i].style.borderRightColor= "#118ACC";
            Calc.elements[i].style.borderBottomColor= "#118ACC";
            Calc.elements[i].style.borderLeftColor= "#118ACC";
            //#CBF3B2
            Calc.elements[i].style.backgroundColor="#ADDEF8";

            

            var str1=Calc.elements[i].value;
            str1=str1.trim();
            /*
            if(str1=="`") 
            {
                Calc.elements[i].style.fontSize=14;
            }
            */

            if(str1.length==1)
            {
                //Calc.elements[i].style.fontSize=16;
                //Calc.elements[i].style.fontWeight='bold';
            }

            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);
                        //alert(234)
                    }
                Calc.elements[i].ondblclick=
                    function ()
                    {
                        var thisButtonValue=this.value;
                        thisButtonValue=thisButtonValue.trim();
                        addValue(thisButtonValue);
                        //alert(234)
                    }
            }

        }
    }
}

function initCalc()
{
    setCalcborder();
    setHead();
    setCalcButtonBg();
}

String.prototype.trim = function()
{
    // 用正则表达式将前后空格
    // 用空字符串替代。
    return this.replace(/(^\s*)|(\s*$)/g, "");
}

var capsLockFlag;
capsLockFlag=true;

function capsLockText()
{
if(capsLockFlag)//改成大写
{
    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;
}

window.onload=
    function ()
    {
        password1=null;        
        initCalc();


    }