/**
 * A class to parse color values
 * @author Stoyan Stefanov <sstoo@gmail.com>
 * @link   http://www.phpied.com/rgb-color-parser-in-javascript/
 * @license Use it if you like it
 *  
 * Modified by MSP to cut out unneeded stuff 
 */
function RGBColor(color_string)
{
	this.ok = false;

	// strip any leading #
	if (color_string.charAt(0) == '#') { // remove # if any
		color_string = color_string.substr(1,6);
	}

	color_string = color_string.replace(/ /g,'');
	color_string = color_string.toLowerCase();

	// array of color definition objects
	var color_defs = [
		{
			re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
			example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
			process: function (bits){
				return [
					parseInt(bits[1]),
					parseInt(bits[2]),
					parseInt(bits[3])
				];
			}
		},
		{
			re: /^(\w{2})(\w{2})(\w{2})$/,
			example: ['#00ff00', '336699'],
			process: function (bits){
				return [
					parseInt(bits[1], 16),
					parseInt(bits[2], 16),
					parseInt(bits[3], 16)
				];
			}
		},
		{
			re: /^(\w{1})(\w{1})(\w{1})$/,
			example: ['#fb0', 'f0f'],
			process: function (bits){
				return [
					parseInt(bits[1] + bits[1], 16),
					parseInt(bits[2] + bits[2], 16),
					parseInt(bits[3] + bits[3], 16)
				];
			}
		}
	];

	// search through the definitions to find a match
	for (var i = 0; i < color_defs.length; i++) {
		var re = color_defs[i].re;
		var processor = color_defs[i].process;
		var bits = re.exec(color_string);
		if (bits) {
			channels = processor(bits);
			this.r = channels[0];
			this.g = channels[1];
			this.b = channels[2];
			this.ok = true;
		}

	}

	// validate/cleanup values
	this.r = (this.r < 0 || isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r);
	this.g = (this.g < 0 || isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g);
	this.b = (this.b < 0 || isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b);

	// some getters
	this.toRGB = function () {
		return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';
	}
	this.toHex = function () {
		var r = this.r.toString(16);
		var g = this.g.toString(16);
		var b = this.b.toString(16);
		if (r.length == 1) r = '0' + r;
		if (g.length == 1) g = '0' + g;
		if (b.length == 1) b = '0' + b;
		return '#' + r + g + b;
	}

}