code: function rstr2hex(input) {
  	  var hexTab = '0123456789abcdef';
  	  var output = '';
  	  var x;
  	  var i;
  
  	  for (i = 0; i < input.length; i += 1) {
  	    x = input.charCodeAt(i);
  	    output += hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f);
  	  }
  
  	  return output;
  	}
docs: /*
  Convert a raw string to a hex string