<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2311">
<title>颜色对话框</title>
<script type="text/javascript" language="javascript">
<!--
var ColorHex=new Array('00','33','66','99','CC','FF')
var SpColorHex=new Array('FF0000','00FF00','0000FF','FFFF00','00FFFF','FF00FF')
var current=null

var rgb
function hex2rgb(a) //将16进制颜色转换成rgb
{
a=a.substring(1);
a=a.toLowerCase();
b=new Array();
for(x=0;x<3;x++){
   b[0]=a.substr(x*2,2);
   b[3]="0123456789abcdef";
   b[1]=b[0].substr(0,1);
   b[2]=b[0].substr(1,1);
   b[20+x]=b[3].indexOf(b[1])*16+b[3].indexOf(b[2]);
}
//return "rgb(" +b[20]+","+b[21]+","+b[22]+ ")";
return b[20]+","+b[21]+","+b[22];
}

function intocolor()
{
var colorTable=''
for (i=0;i<2;i++)
{
for (j=0;j<6;j++)
   {
    colorTable=colorTable+'<tr height=12>'
    colorTable=colorTable+'<td width=11 style="background-color:#000000">'
   
    if (i==0){
    colorTable=colorTable+'<td width=11 style="background-color:#'+ColorHex[j]+ColorHex[j]+ColorHex[j]+'">'}
    else{
    colorTable=colorTable+'<td width=11 style="background-color:#'+SpColorHex[j]+'">'}

   
    colorTable=colorTable+'<td width=11 style="background-color:#000000">'
    for (k=0;k<3;k++)
     {
       for (l=0;l<6;l++)
       {
        colorTable=colorTable+'<td width=11 style="background-color:#'+ColorHex[k+i*3]+ColorHex[l]+ColorHex[j]+'">'
       }
     }
}
}
colorTable='<table width=253 border="0" cellspacing="0" cellpadding="0" style="border:1px #000000 solid;border-bottom:none;border-collapse: collapse" bordercolor="000000">'
           +'<tr height=30><td colspan=21 bgcolor=#cccccc>'
           +'<table cellpadding="0" cellspacing="1" border="0" style="border-collapse: collapse">'
           +'<tr><td width="3"><td><input type="text" name="DisColor" size="6" disabled style="border:solid 1px #000000;background-color:#ffff00"></td>'
           +'<td width="3"><td><input type="text" name="HexColor" size="7" style="border:inset 1px;font-family:Arial;" value="#000000"></td></tr></table></td></table>'
           +'<table border="1" cellspacing="0" cellpadding="0" style="border-collapse: collapse" bordercolor="000000" style="cursor:hand;">'
           +colorTable+'</table>';         
colorpanel.innerHTML=colorTable
}
//将颜色值字母大写
function doOver() {
      if ((event.srcElement.tagName=="TD") && (current!=event.srcElement)) {
        if (current!=null){current.style.backgroundColor = current._background}    
        event.srcElement._background = event.srcElement.style.backgroundColor
        DisColor.style.backgroundColor = event.srcElement.style.backgroundColor
        HexColor.value = event.srcElement.style.backgroundColor.toUpperCase();
        event.srcElement.style.backgroundColor = "white"
        current = event.srcElement
      }
}
//将颜色值字母大写
function doOut() {

    if (current!=null) current.style.backgroundColor = current._background.toUpperCase();
}
function doclick()
{
    if (event.srcElement.tagName == "TD")
    {
        var clr = event.srcElement._background;
        clr = clr.toUpperCase(); //将颜色值大写
        if (targetElement)
        {
            //给目标无件设置颜色值

             rgb=hex2rgb(clr)
            targetElement.value = rgb;
        }
        DisplayClrDlg(false);
        return clr;
    }
}
-->
</script>
</head>

<body>

<div id="colorpanel" style="position:absolute;display:none;width:253px;height:177px;"></div>

请点击文本框:<input type="text" size="8" alt="clrDlg" readonly>

<script type="text/javascript" language="javascript">
<!--
//应用颜色对话框必须注意两点:
//颜色对话框 id : colorpanel 不能变
//触发颜色对话框显示的文本框(或其它)必须有 alt 属性,且值为 clrDlg(不能忽略大小写)

var targetElement = null; //接收颜色对话框返回值的元素

//当点下鼠标时,确定显示还是隐藏颜色对话框
//点击颜色对话框以外其它区域时,让对话框隐藏
//点击颜色对话框色区时,由 doclick 函数来隐藏对话框
function OnDocumentClick()
{
    var srcElement = event.srcElement;
    if (srcElement.alt == "clrDlg")
    {
        //显示颜色对话框
        targetElement = event.srcElement;
        DisplayClrDlg(true);
    }
    else
    {
        //是否是在颜色对话框上点击的
        while (srcElement && srcElement.id!="colorpanel")
        {
            srcElement = srcElement.parentElement;
        }
        if (!srcElement)
        {
            //不是在颜色对话框上点击的
            DisplayClrDlg(false);
        }
    }
   
}

//显示颜色对话框
//display 决定显示还是隐藏
//自动确定显示位置
function DisplayClrDlg(display)
{
    var clrPanel = document.getElementById("colorpanel");
    if (display)
    {
        var left = document.body.scrollLeft + event.clientX;
        var top = document.body.scrollTop + event.clientY;
        if (event.clientX+clrPanel.style.pixelWidth > document.body.clientWidth)
        {
            //对话框显示在鼠标右方时,会出现遮挡,将其显示在鼠标左方
            left -= clrPanel.style.pixelWidth;
        }
        if (event.clientY+clrPanel.style.pixelHeight > document.body.clientHeight)
        {
            //对话框显示在鼠标下方时,会出现遮挡,将其显示在鼠标上方
            top -= clrPanel.style.pixelHeight;
        }
       
        clrPanel.style.pixelLeft = left;
        clrPanel.style.pixelTop = top;
        clrPanel.style.display = "block";
    }
    else
    {
        clrPanel.style.display = "none";
    }
}

document.body.onclick = OnDocumentClick;
document.body.onload = intocolor;
//-->
</script>
</body>
</html>