1var rgbToHex = function (rgb) { 
2  var hex = Number(rgb).toString(16);
3  if (hex.length < 2) {
4       hex = "0" + hex;
5  }
6  return hex;
7};

1function ascii_to_hex(str)
2  {
3	var arr1 = [];
4	for (var n = 0, l = str.length; n < l; n ++) 
5     {
6		var hex = Number(str.charCodeAt(n)).toString(16);
7		arr1.push(hex);
8	 }
9	return arr1.join('');
10   }