var base64DecodeChars = new Array(
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
-1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
-1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);

function redirectLink(url, link) {
	var _url = base64decode(url);
	link.setAttribute('href', _url);
	return false;
}

function modifyLink(url){
	url = base64decode(url);
	window.location.href=url;
	return false;
}

function base64decode(str) {
    var c1, c2, c3, c4;
    var i, len, out;

    len = str.length;
    i = 0;
    out = "";
    while(i < len) {
 /* c1 */
do {
     c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
} while(i < len && c1 == -1);
if(c1 == -1)
    break;

/* c2 */
do {
    c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
} while(i < len && c2 == -1);
if(c2 == -1)
    break;
 out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));
 /* c3 */
do {
    c3 = str.charCodeAt(i++) & 0xff;
    if(c3 == 61)
 return out;
    c3 = base64DecodeChars[c3];
} while(i < len && c3 == -1);
if(c3 == -1)
    break;
 out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
 /* c4 */
do {
    c4 = str.charCodeAt(i++) & 0xff;
    if(c4 == 61)
 return out;
    c4 = base64DecodeChars[c4];
} while(i < len && c4 == -1);
if(c4 == -1)
    break;
out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
   }
   return out;
}