function str_pad( input, pad_length, pad_string, pad_type ) {	// Pad a string to a certain length with another string
	// 
	// +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
	// + namespaced by: Michael White (http://crestidg.com)

	var half = '', pad_to_go;

	var str_pad_repeater = function(s, len){
			var collect = '', i;

			while(collect.length < len) collect += s;
			collect = collect.substr(0,len);

			return collect;
		};

	if (pad_type != 'STR_PAD_LEFT' && pad_type != 'STR_PAD_RIGHT' && pad_type != 'STR_PAD_BOTH') { pad_type = 'STR_PAD_RIGHT'; }
	if ((pad_to_go = pad_length - input.length) > 0) {
		if (pad_type == 'STR_PAD_LEFT') { input = str_pad_repeater(pad_string, pad_to_go) + input; }
		else if (pad_type == 'STR_PAD_RIGHT') { input = input + str_pad_repeater(pad_string, pad_to_go); }
		else if (pad_type == 'STR_PAD_BOTH') {
			half = str_pad_repeater(pad_string, Math.ceil(pad_to_go/2));
			input = half + input + half;
			input = input.substr(0, pad_length);
		}
	}

	return input;
}