/**
*
*  Javascript string pad
*  http://www.webtoolkit.info/
*
**/
 
var STR_PAD_LEFT = 1;
var STR_PAD_RIGHT = 2;
var STR_PAD_BOTH = 3;
 
function pad(str, len, pad, dir) {
 
    if (typeof(len) == "undefined") { var len = 0; }
    if (typeof(pad) == "undefined") { var pad = ' '; }
    if (typeof(dir) == "undefined") { var dir = STR_PAD_RIGHT; }
 
    if (len + 1 >= str.length) {
 
        switch (dir){
 
            case STR_PAD_LEFT:
                str = Array(len + 1 - str.length).join(pad) + str;
            break;
 
            case STR_PAD_BOTH:
                var right = Math.ceil((padlen = len - str.length) / 2);
                var left = padlen - right;
                str = Array(left+1).join(pad) + str + Array(right+1).join(pad);
            break;
 
            default:
                str = str + Array(len + 1 - str.length).join(pad);
            break;
 
        } // switch
 
    }
 
    return str;
 
}