Download color picker

Put this into your <HEAD> section

	<style type="text/css">
	body{
		font-family: Trebuchet MS, Lucida Sans Unicode, Arial, sans-serif;
	}
	
	#dhtmlgoodies_colorPicker{
		position:absolute;
		width:224px;
		padding-bottom:1px;
		background-color:#FFF;
		border:1px solid #317082;
	}
	
	#dhtmlgoodies_colorPicker .colorPicker_topRow{
		height:16px;
		padding-bottom:1px;
		border-bottom:3px double #317082;
		background-color:#E2EBED;
		padding-left:2px;

		width: 224px;	/* IE 5.x */
		width/* */:/**/222px;	/* Other browsers */
		width: /**/222px;
		
		height: 20px;	/* IE 5.x */
		height/* */:/**/16px;	/* Other browsers */
		height: /**/16px;
		
		
			
	}
	
	#dhtmlgoodies_colorPicker .colorPicker_statusBar{
		height:13px;
		padding-bottom:2px;
		
		border-top:3px double #317082;	
		background-color:#E2EBED;
		padding-left:2px;
		clear:both;
		
		width: 224px;	/* IE 5.x */
		width/* */:/**/222px;	/* Other browsers */
		width: /**/222px;	
		
		height: 18px;	/* IE 5.x */
		height/* */:/**/13px;	/* Other browsers */
		height: /**/13px;		
	}
	
	#dhtmlgoodies_colorPicker .colorSquare{
		width:10px;
		height:10px;
		margin-left:1px;
		margin-bottom:1px;
		float:left;
		border:1px solid #000;
		cursor:pointer;
		
		width: 12px;	/* IE 5.x */
		width/* */:/**/10px;	/* Other browsers */
		width: /**/10px;			
	}
	
	.colorPickerTab_inactive,.colorPickerTab_active{
	
		height:17px;
		padding-left:4px;
		cursor:pointer;	
		
		
	}
	.colorPickerTab_inactive span{
		background-image:url('images/tab_left_inactive.gif');
	}
	
	.colorPickerTab_active span{
		background-image:url('images/tab_left_active.gif');

	}
	.colorPickerTab_inactive span, .colorPickerTab_active span{
		line-height:16px;
		font-weight:bold;
		font-family:arial;
		font-size:11px;
		padding-top:1px;
		vertical-align:middle;
		background-position:top left;
		background-repeat: no-repeat;	
		float:left;
		padding-left:6px;
		-moz-user-select:no;
	}	
	.colorPickerTab_inactive img,.colorPickerTab_active img{
		float:left;
	}
	.colorPickerCloseButton{
		text-align:center;
		line-height:11px;
		border:1px solid #317082;
		position:absolute;
		right:1px;
		font-size:12px;
		font-weight:bold;
		top:1px;
		padding:1px;
		cursor:pointer;	
		
		width: 13px;	/* IE 5.x */
		width/* */:/**/11px;	/* Other browsers */
		width: /**/11px;
		
		height: 13px;	/* IE 5.x */
		height/* */:/**/11px;	/* Other browsers */
		height: /**/11px;	
				
		
	}
	#colorPicker_statusBarTxt{
		font-size:11px;
		font-family:arial;
		vertical-align:top;
		line-height:13px;

	}
	form{
		padding-left:5px;
	}
	</style>
	<script type="text/javascript">
	/************************************************************************************************************
	(C) www.dhtmlgoodies.com, October 2005
	
	This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	
	
	Terms of use:
	You are free to use this script as long as the copyright message is kept intact. However, you may not
	redistribute, sell or repost it without our permission.
	
	Thank you!
	
	www.dhtmlgoodies.com
	Alf Magne Kalleland
	
	************************************************************************************************************/	

	var MSIE = navigator.userAgent.indexOf('MSIE')>=0?true:false;
	var navigatorVersion = navigator.appVersion.replace(/.*?MSIE (\d\.\d).*/g,'$1')/1;
		
	var namedColors = new Array('AliceBlue','AntiqueWhite','Aqua','Aquamarine','Azure','Beige','Bisque','Black','BlanchedAlmond','Blue','BlueViolet','Brown',
	'BurlyWood','CadetBlue','Chartreuse','Chocolate','Coral','CornflowerBlue','Cornsilk','Crimson','Cyan','DarkBlue','DarkCyan','DarkGoldenRod','DarkGray',
	'DarkGreen','DarkKhaki','DarkMagenta','DarkOliveGreen','Darkorange','DarkOrchid','DarkRed','DarkSalmon','DarkSeaGreen','DarkSlateBlue','DarkSlateGray',
	'DarkTurquoise','DarkViolet','DeepPink','DeepSkyBlue','DimGray','DodgerBlue','Feldspar','FireBrick','FloralWhite','ForestGreen','Fuchsia','Gainsboro',
	'GhostWhite','Gold','GoldenRod','Gray','Green','GreenYellow','HoneyDew','HotPink','IndianRed','Indigo','Ivory','Khaki','Lavender','LavenderBlush',
	'LawnGreen','LemonChiffon','LightBlue','LightCoral','LightCyan','LightGoldenRodYellow','LightGrey','LightGreen','LightPink','LightSalmon','LightSeaGreen',
	'LightSkyBlue','LightSlateBlue','LightSlateGray','LightSteelBlue','LightYellow','Lime','LimeGreen','Linen','Magenta','Maroon','MediumAquaMarine',
	'MediumBlue','MediumOrchid','MediumPurple','MediumSeaGreen','MediumSlateBlue','MediumSpringGreen','MediumTurquoise','MediumVioletRed','MidnightBlue',
	'MintCream','MistyRose','Moccasin','NavajoWhite','Navy','OldLace','Olive','OliveDrab','Orange','OrangeRed','Orchid','PaleGoldenRod','PaleGreen',
	'PaleTurquoise','PaleVioletRed','PapayaWhip','PeachPuff','Peru','Pink','Plum','PowderBlue','Purple','Red','RosyBrown','RoyalBlue','SaddleBrown',
	'Salmon','SandyBrown','SeaGreen','SeaShell','Sienna','Silver','SkyBlue','SlateBlue','SlateGray','Snow','SpringGreen','SteelBlue','Tan','Teal','Thistle',
	'Tomato','Turquoise','Violet','VioletRed','Wheat','White','WhiteSmoke','Yellow','YellowGreen');
	
	 var namedColorRGB = new Array('#F0F8FF','#FAEBD7','#00FFFF','#7FFFD4','#F0FFFF','#F5F5DC','#FFE4C4','#000000','#FFEBCD','#0000FF','#8A2BE2','#A52A2A','#DEB887',
	'#5F9EA0','#7FFF00','#D2691E','#FF7F50','#6495ED','#FFF8DC','#DC143C','#00FFFF','#00008B','#008B8B','#B8860B','#A9A9A9','#006400','#BDB76B','#8B008B',
	'#556B2F','#FF8C00','#9932CC','#8B0000','#E9967A','#8FBC8F','#483D8B','#2F4F4F','#00CED1','#9400D3','#FF1493','#00BFFF','#696969','#1E90FF','#D19275',
	'#B22222','#FFFAF0','#228B22','#FF00FF','#DCDCDC','#F8F8FF','#FFD700','#DAA520','#808080','#008000','#ADFF2F','#F0FFF0','#FF69B4','#CD5C5C','#4B0082',
	'#FFFFF0','#F0E68C','#E6E6FA','#FFF0F5','#7CFC00','#FFFACD','#ADD8E6','#F08080','#E0FFFF','#FAFAD2','#D3D3D3','#90EE90','#FFB6C1','#FFA07A','#20B2AA',
	'#87CEFA','#8470FF','#778899','#B0C4DE','#FFFFE0','#00FF00','#32CD32','#FAF0E6','#FF00FF','#800000','#66CDAA','#0000CD','#BA55D3','#9370D8','#3CB371',
	'#7B68EE','#00FA9A','#48D1CC','#C71585','#191970','#F5FFFA','#FFE4E1','#FFE4B5','#FFDEAD','#000080','#FDF5E6','#808000','#6B8E23','#FFA500','#FF4500',
	'#DA70D6','#EEE8AA','#98FB98','#AFEEEE','#D87093','#FFEFD5','#FFDAB9','#CD853F','#FFC0CB','#DDA0DD','#B0E0E6','#800080','#FF0000','#BC8F8F','#4169E1',
	'#8B4513','#FA8072','#F4A460','#2E8B57','#FFF5EE','#A0522D','#C0C0C0','#87CEEB','#6A5ACD','#708090','#FFFAFA','#00FF7F','#4682B4','#D2B48C','#008080',
	'#D8BFD8','#FF6347','#40E0D0','#EE82EE','#D02090','#F5DEB3','#FFFFFF','#F5F5F5','#FFFF00','#9ACD32');	
	
	
	var color_picker_div = false;
	var color_picker_active_tab = false;
	var color_picker_form_field = false;
	var color_picker_active_input = false;
	function baseConverter (number,ob,nb) {
		number = number + "";
		number = number.toUpperCase();
		var list = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
		var dec = 0;
		for (var i = 0; i <=  number.length; i++) {
			dec += (list.indexOf(number.charAt(i))) * (Math.pow(ob , (number.length - i - 1)));
		}
		number = "";
		var magnitude = Math.floor((Math.log(dec))/(Math.log(nb)));
		for (var i = magnitude; i >= 0; i--) {
			var amount = Math.floor(dec/Math.pow(nb,i));
			number = number + list.charAt(amount); 
			dec -= amount*(Math.pow(nb,i));
		}
		if(number.length==0)number=0;
		return number;
	}
	
	function colorPickerGetTopPos(inputObj)
	{
		
	  var returnValue = inputObj.offsetTop;
	  while((inputObj = inputObj.offsetParent) != null){
	  	returnValue += inputObj.offsetTop;
	  }
	  return returnValue;
	}
	
	function colorPickerGetLeftPos(inputObj)
	{
	  var returnValue = inputObj.offsetLeft;
	  while((inputObj = inputObj.offsetParent) != null)returnValue += inputObj.offsetLeft;
	  return returnValue;
	}
	
	function cancelColorPickerEvent(){
		return false;
	}
	
	function showHideColorOptions()
	{
		var parentNode = this.parentNode;
		var subDiv = parentNode.getElementsByTagName('DIV')[0];
		counter=0;		
		var contentDiv = document.getElementById('color_picker_content').getElementsByTagName('DIV')[0];
		do{			
			if(subDiv.tagName=='DIV' && subDiv.className!='colorPickerCloseButton'){
				if(subDiv==this){
					this.className='colorPickerTab_active';
					this.style.zIndex = 50;
					var img = this.getElementsByTagName('IMG')[0];
					img.src = "images/tab_right_active.gif"
					img.src = img.src.replace(/inactive/,'active');							
					contentDiv.style.display='block';
					self.status = counter;					
				}else{
					subDiv.className = 'colorPickerTab_inactive';	
					var img = subDiv.getElementsByTagName('IMG')[0];
					img.src = "images/tab_right_inactive.gif"
					self.status = img.src;
					subDiv.style.zIndex = 10 - counter;
					contentDiv.style.display='none';
				}
				counter++;
			}
			subDiv = subDiv.nextSibling;
			contentDiv = contentDiv.nextSibling;
		}while(subDiv);
		
		document.getElementById('colorPicker_statusBarTxt').innerHTML = ' ';


	}
	
	function createColorPickerTopRow(inputObj){
		var tabs = ['RGB','Named colors'];
		var tabWidths = [37,90,70];
		var div = document.createElement('DIV');
		div.className='colorPicker_topRow';
	
		inputObj.appendChild(div);	
		var currentWidth = 0;
		for(var no=0;no<tabs.length;no++){			
			
			var tabDiv = document.createElement('DIV');
			tabDiv.onselectstart = cancelColorPickerEvent;
			tabDiv.ondragstart = cancelColorPickerEvent;
			if(no==0){
				suffix = 'active'; 
				color_picker_active_tab = this;
			}else suffix = 'inactive';
			
			tabDiv.id = 'colorPickerTab' + no;
			tabDiv.onclick = showHideColorOptions;
			if(no==0)tabDiv.style.zIndex = 50; else tabDiv.style.zIndex = 1 + (tabs.length-no);
			tabDiv.style.left = currentWidth + 'px';
			tabDiv.style.position = 'absolute';
			tabDiv.className='colorPickerTab_' + suffix;
			var tabSpan = document.createElement('SPAN');
			tabSpan.innerHTML = tabs[no];
			tabDiv.appendChild(tabSpan);
			var tabImg = document.createElement('IMG');
			tabImg.src = "images/tab_right_" + suffix + ".gif";
			tabDiv.appendChild(tabImg);
			if(navigatorVersion<6 && MSIE){	/* Lower IE version fix */
				tabSpan.style.position = 'relative';
				tabImg.style.position = 'relative';
				tabImg.style.left = '-3px';		
				tabDiv.style.cursor = 'hand';	
			}			
			div.appendChild(tabDiv);
			currentWidth = currentWidth + tabWidths[no];
		
		}
		
		var closeButton = document.createElement('DIV');
		closeButton.className='colorPickerCloseButton';
		closeButton.innerHTML = 'x';
		closeButton.onclick = closeColorPicker;
		closeButton.onmouseover = toggleCloseButton;
		closeButton.onmouseout = toggleOffCloseButton;
		div.appendChild(closeButton);
		
	}
	
	function toggleCloseButton()
	{
		this.style.color='#FFF';
		this.style.backgroundColor = '#317082';	
	}
	function toggleOffCloseButton()
	{
		this.style.color='';
		this.style.backgroundColor = '';			
		
	}
	function closeColorPicker()
	{
		color_picker_div.style.display='none';
	}
	function createWebColors(inputObj){
		var webColorDiv = document.createElement('DIV');
		inputObj.appendChild(webColorDiv);
		for(var r=15;r>=0;r-=3){
			for(var g=0;g<=15;g+=3){
				for(var b=0;b<=15;b+=3){
					var red = baseConverter(r,10,16) + '';
					var green = baseConverter(g,10,16) + '';
					var blue = baseConverter(b,10,16) + '';
					
					var color = '#' + red + red + green + green + blue + blue;
					var div = document.createElement('DIV');
					div.style.backgroundColor=color;
					div.innerHTML = '<span></span>';
					div.className='colorSquare';
					div.title = color;	
					div.onclick = chooseColor;
					div.setAttribute('rgbColor',color);
					div.onmouseover = colorPickerShowStatusBarText;
					div.onmouseout = colorPickerHideStatusBarText;
					webColorDiv.appendChild(div);
				}
			}
		}
	}
		
	function createNamedColors(inputObj){
		var namedColorDiv = document.createElement('DIV');
		namedColorDiv.style.display='none';
		inputObj.appendChild(namedColorDiv);
		for(var no=0;no<namedColors.length;no++){
			var color = namedColorRGB[no];
			var div = document.createElement('DIV');
			div.style.backgroundColor=color;
			div.innerHTML = '<span></span>';
			div.className='colorSquare';
			div.title = namedColors[no];	
			div.onclick = chooseColor;
			div.onmouseover = colorPickerShowStatusBarText;
			div.onmouseout = colorPickerHideStatusBarText;
			div.setAttribute('rgbColor',color);
			namedColorDiv.appendChild(div);				
		}		
	}
	
	function colorPickerHideStatusBarText()
	{
		document.getElementById('colorPicker_statusBarTxt').innerHTML = ' ';
	}
	
	function colorPickerShowStatusBarText()
	{
		var txt = this.getAttribute('rgbColor');
		if(this.title.indexOf('#')<0)txt = txt + " (" + this.title + ")";
		document.getElementById('colorPicker_statusBarTxt').innerHTML = txt;	
	}
	
	function createAllColorDiv(inputObj){
		var namedColorDiv = document.createElement('DIV');
		namedColorDiv.style.display='none';
		inputObj.appendChild(namedColorDiv);	
	}
	
	function chooseColor()
	{
		color_picker_form_field.value = this.getAttribute('rgbColor');
		color_picker_div.style.display='none';
	}
	
	function createStatusBar(inputObj)
	{
		var div = document.createElement('DIV');
		div.className='colorPicker_statusBar';	
		var innerSpan = document.createElement('SPAN');
		innerSpan.id = 'colorPicker_statusBarTxt';
		div.appendChild(innerSpan);
		inputObj.appendChild(div);
	}
	
	function showColorPicker(inputObj,formField)
	{
		if(!color_picker_div){
			color_picker_div = document.createElement('DIV');
			color_picker_div.id = 'dhtmlgoodies_colorPicker';
			color_picker_div.style.display='none';
			createColorPickerTopRow(color_picker_div);
			
			var contentDiv = document.createElement('DIV');
			contentDiv.id = 'color_picker_content';
			color_picker_div.appendChild(contentDiv);
			
			createWebColors(contentDiv);
			createNamedColors(contentDiv);
			createAllColorDiv(contentDiv);
			createStatusBar(color_picker_div);
			document.body.appendChild(color_picker_div);
		}		
		if(color_picker_div.style.display=='none' || color_picker_active_input!=inputObj)color_picker_div.style.display='block'; else color_picker_div.style.display='none';		
		color_picker_div.style.left = colorPickerGetLeftPos(inputObj) + 'px';
		color_picker_div.style.top = colorPickerGetTopPos(inputObj) + inputObj.offsetHeight + 2 + 'px';
		color_picker_form_field = formField;
		color_picker_active_input = inputObj;
		
		
	}
	
	
	</script>
</head>

Put this into your <BODY> section

<form>

<h1>Example 1</h1>
<div style="width:103px;width/* */:/**/100px;width: /**/100px;height:20px;border:1px solid #7F9DB9;">
	<input type="text" maxlength="7" style="width:80px;font-size:12px;height:17px;float:left;border:0px;padding-top:2px" name="rgb" size="10">
	<img style="float:right;padding-right:1px;padding-top:1px" src="images/select_arrow.gif" onmouseover="this.src='images/select_arrow_over.gif'" onmouseout="this.src='images/select_arrow.gif'" onclick="showColorPicker(this,document.forms[0].rgb)">
</div>


<h2>Simpler example 2</h2>

<table>
	<tr>
		<td><input type="text" size="10" maxlength="7" name="rgb2"></td>
		<td><input type="button" value="Color picker" onclick="showColorPicker(this,document.forms[0].rgb2)"></td>
	</tr>
</table>
</form>

Configuration

You simply assign an onclick event to an image or a button. Example
<input type="button" value="Color picker" onclick="showColorPicker(this,document.forms[0].rgb2)">