js 颜色选择器（兼容firefox）

代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>颜色选择器</title>
<style type="text/css">
body{
    text-align:center;
}
</style>
</head>
<body>
<p>
<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
function initcolor(evt)
{
var colorTable=''
for (i=0;i<2;i++)
{
for (j=0;j<6;j++)
{
colorTable=colorTable+'<tr height=15>'
colorTable=colorTable+'<td width=15 style="background-color:#000000">'
if (i==0){
colorTable=colorTable+'<td width=15 style="cursor:pointer;background-color:#'+ColorHex[j]+ColorHex[j]+ColorHex[j]+'" onclick="doclick(this.style.backgroundColor)">'}
else{
colorTable=colorTable+'<td width=15 style="cursor:pointer;background-color:#'+SpColorHex[j]+'" onclick="doclick(this.style.backgroundColor)">'}
colorTable=colorTable+'<td width=15 style="background-color:#000000">'
for (k=0;k<3;k++)
{
for (l=0;l<6;l++)
{
colorTable=colorTable+'<td width=15 style="cursor:pointer;background-color:#'+ColorHex[k+i*3]+ColorHex[l]+ColorHex[j]+'" onclick="doclick(this.style.backgroundColor)">'
}
}
}
}
colorTable='<table border="0" cellspacing="0" cellpadding="0" style="border:1px #000000 solid;border-bottom:none;border-collapse: collapse;width:337px;" bordercolor="000000">'
+'<tr height=20><td colspan=21 bgcolor=#ffffff style="font:12px tahoma;padding-left:2px;">'
         +'<span style="float:left;color:#999999;">搜索吧|为站长提供专业知识搜索</span>'
         +'<span style="float:right;padding-right:3px;cursor:pointer;" onclick="colorclose()">×关闭</span>'
+'</td></table>'
+'<table border="1" cellspacing="0" cellpadding="0" style="border-collapse: collapse" bordercolor="000000" style="cursor:pointer;">'
+colorTable+'</table>';
document.getElementById("colorpane").innerHTML=colorTable;
var current_x = document.getElementById("inputcolor").offsetLeft;
var current_y = document.getElementById("inputcolor").offsetTop;
//alert(current_x + "-" + current_y)
document.getElementById("colorpane").style.left = current_x + "px";
document.getElementById("colorpane").style.top = current_y + "px";
}
function doclick(obj){
    alert(obj);
}
function colorclose(){
    document.getElementById("colorpane").style.display = "none";
    //alert("ok");
}
function coloropen(){
    document.getElementById("colorpane").style.display = "";
}
window.onload = initcolor;
</script>
</p>
<p> </p>
<p> </p>
<p> </p>
<p>
<input type="button" value="颜色选择" onclick="coloropen(event)" id="inputcolor" />
</p>
<p>  </p>
<div id="colorpane" style="position:absolute;z-index:999;display:none;"></div>
</body>
</html>