picker.rgbToHex = function(hexColor) { // RGB转换16进制
	if (/^rgb\((\d+), ?(\d+), ?(\d+)\)$/i.test(hexColor)) {
		var red = parseInt(RegExp['$1']).toString(16)
			, green = parseInt(RegExp['$2']).toString(16)
			, blue = parseInt(RegExp['$3']).toString(16)
			, hexs = [red, green, blue]
		;
		for (var i = 0; i < 3; i++) {
			if (hexs[i].length === 1) {
				hexs[i] = '0'+hexs[i];
			}
		}
		return '#'+hexs.join('');
	}
	return hexColor;
}

picker.hexToRgb = function(color) { // 16进制转换RGB
	if (!color || color.substr(0,1) != '#') return color;
	if(color.length === 4){
		var newcolor = ['#'];
		for(var i = 1; i < 4; i += 1) {
			newcolor.push(color.slice(i, i+1).concat(color.slice(i, i+1)));
		}
		color = newcolor.join('');
	}
	var rgb = [];
	for(var i = 1; i < 7; i += 2) {
		rgb.push(parseInt("0x"+color.slice(i, i+2)));	
	}
	return 'rgb('+rgb.join(',')+')';
};