非常不错的支持各种浏览器的简易调色板

以下为详细代码

<!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=utf-8" />
<title>非常不错的支持各种浏览器的简易调色板</title>
<style>
#colorBoard{position:absolute; padding:10px; width:256px; height:220px; background:#f3f3f3; border:#d9d9d9 1px solid;}
#colorBank{ clear:both; border:#d9d9d9 1px solid; background:#FFF; width:252px; padding:0 0 2px 2px; overflow:hidden; margin:0 auto 0 auto;}
#colorBank div{ overflow:hidden; height:12px; width:12px; margin:2px 2px 0 0; float:left; overflow:hidden; cursor:pointer;}
#colorViews{width:80px; height:20px; float:left;border:#d9d9d9 1px solid; background:#000; display:block; margin: 0 10px 10px 0;}
#colorInput{width:70px; height:18px; float:left; font-family:Verdana; font-size:13px; color:#333; display:block; border:none; background:#FFF;border:#d9d9d9 1px solid;margin: 0 10px 10px 0;}
#colorClose{width:80px; color:#999999; height:22px; float:left;display:block; background:#f3f3f3;cursor:pointer;border:#d9d9d9 1px solid; border-top:#FFF 1px solid; border-left:#FFF 1px solid;}
</style>
<script>
//非常不错的支持各种浏览器的简易调色板
function colorSelect(now,page,e){
	if(document.getElementById("colorBoard")){
		return;
	}
	//关于出现位置
	e=e||event;
	var scrollpos = getScrollPos();
	var l = scrollpos.l + e.clientX;
    var t = scrollpos.t + e.clientY + 10;
    if (l > getBody().clientWidth-253){
        l = getBody().clientWidth-253;
   	}
	//创建DOM
	var nowColor = document.getElementById(now);
	var pageColorViews = document.getElementById(page);
	var ColorHex=new Array('00','33','66','99','CC','FF');
	var SpColorHex=new Array('FF0000','00FF00','0000FF','FFFF00','00FFFF','FF00FF');
	var colorBank = document.createElement("div");
	colorBank.setAttribute("id","colorBank");
	var colorViews = document.createElement("div");
	colorViews.setAttribute("id","colorViews");
	var colorInput = document.createElement("input");
	colorInput.setAttribute("id","colorInput");
	colorInput.setAttribute("type","text");
	colorInput.setAttribute("disabled","disabled");
	var colorClose = document.createElement("input");
	colorClose.setAttribute("id","colorClose");
	colorClose.setAttribute("value","取消");
	colorClose.setAttribute("type","button");
	colorClose.onclick=function(){document.body.removeChild(colorBoard)};
	var colorBoard =document.createElement("div");
	colorBoard.id="colorBoard";
	colorBoard.style.left = l+"px";
	colorBoard.style.top = t+ "px";
	colorBoard.appendChild(colorViews);
	colorBoard.appendChild(colorInput);
	colorBoard.appendChild(colorClose);
	colorBoard.appendChild(colorBank);
	document.body.appendChild(colorBoard);
	//循环出调色板
	for(b=0;b<6;b++){
		for(a=0;a<3;a++){
			for(i=0;i<6;i++){
				colorItem = document.createElement("div");
				colorItem.style.backgroundColor="#"+ColorHex[a]+ColorHex[i]+ColorHex[b];
				colorBank.appendChild(colorItem);
			}    
		}
	}
	for(b=0;b<6;b++){
		for(a=3;a<6;a++){
			for(i=0;i<6;i++){
				colorItem = document.createElement("div");
				colorItem.style.backgroundColor="#"+ColorHex[a]+ColorHex[i]+ColorHex[b];
				colorBank.appendChild(colorItem);
			}    
		}
	}
	for(i=0;i<6;i++){
		colorItem = document.createElement("div");
		colorItem.style.backgroundColor="#"+ColorHex[0]+ColorHex[0]+ColorHex[0];
		colorBank.appendChild(colorItem);
	}
	for(i=0;i<6;i++){
		colorItem = document.createElement("div");
		colorItem.style.backgroundColor="#"+ColorHex[i]+ColorHex[i]+ColorHex[i];
		colorBank.appendChild(colorItem);
	}
	for(i=0;i<6;i++){
		colorItem = document.createElement("div");
		colorItem.style.backgroundColor="#"+SpColorHex[i];
		colorBank.appendChild(colorItem);
	}
	var colorItems = colorBank.getElementsByTagName("div");
	for(i=0; i<colorItems.length;i++){
		colorItems[i].onmouseover = function(){
			a = this.style.backgroundColor;
			if(a.length>7){
				a = formatRgb(a);//
			}
			colorViews.style.background = a.toUpperCase();
			colorInput.value = a.toUpperCase();
		}
		colorItems[i].onclick = function(){
			a = this.style.backgroundColor;
			if(a.length>7){
				a = formatRgb(a);//
			}
			nowColor.value = a.toUpperCase();
			pageColorViews.style.background = a.toUpperCase();
			document.body.removeChild(colorBoard);
		}
	}
	
}
//格式化函数
function formatRgb(rgb){
	rgb = rgb.replace("rgb","");rgb = rgb.replace("(","");rgb = rgb.replace(")","");
	format = rgb.split(",");
	a = eval(format[0]).toString(16);
	b = eval(format[1]).toString(16);
	c = eval(format[2]).toString(16);
	rgb = "#"+checkFF(a)+checkFF(b)+checkFF(c);
	function checkFF(str){
		if(str.length == 1){
			str = str+""+str;
			return str;
		}else{
			return str;
		}
	}
	return rgb;
}
//getBody()
function getBody(){
    var Body;
    if (typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat') {
       Body = document.documentElement;
    }
    else if (typeof document.body != 'undefined') {
       Body = document.body;
    }
    return Body;
}
//scrollPos
function getScrollPos(){
  var t,l;
  if (typeof window.pageYOffset != 'undefined'){
    t = window.pageYOffset;
    l = window.pageXOffset;
  }
  else{
  	t = getBody().scrollTop;
  	l = getBody().scrollLeft;
  }
  return {t:t,l:l};
}
</script>
</head>
<body>
<table width="500" border="1">
  <tr>
    <td><input type="text" value="" id="nowColor" /></td>
    <td><div id="pageColorViews" style="background:#000; width:30px; height:30px;"></div></td>
    <td><a href="javascript:;" onclick="colorSelect('nowColor','pageColorViews',event)">点我就出调色板</a></td>
  </tr>
</table>
</body>
</html>