// Global lookup arrays for base64 conversions
var enc64List, dec64List;
// Load the lookup arrays once
function initBase64() {
    enc64List = new Array();
    dec64List = new Array();
    var i;
    for (i = 0; i < 26; i++) {
        enc64List[enc64List.length] = String.fromCharCode(65 + i);
    }
    for (i = 0; i < 26; i++) {
        enc64List[enc64List.length] = String.fromCharCode(97 + i);
    }
    for (i = 0; i < 10; i++) {
        enc64List[enc64List.length] = String.fromCharCode(48 + i);
    }
    enc64List[enc64List.length] = "+";
    enc64List[enc64List.length] = "/";
    for (i = 0; i < 128; i++) {
        dec64List[dec64List.length] = -1;
    }
    for (i = 0; i < 64; i++) {
        dec64List[enc64List[i].charCodeAt(0)] = i;
    }
}

function base64Encode(str) {
    var c, d, e, end = 0;
    var u, v, w, x;
    var ptr = -1;
    var input = str.split("");
    var output = "";
    while(end == 0) {
        c = (typeof input[++ptr] != "undefined") ? input[ptr].charCodeAt(0) : 
            ((end = 1) ? 0 : 0);
        d = (typeof input[++ptr] != "undefined") ? input[ptr].charCodeAt(0) : 
            ((end += 1) ? 0 : 0);
        e = (typeof input[++ptr] != "undefined") ? input[ptr].charCodeAt(0) : 
            ((end += 1) ? 0 : 0);
        u = enc64List[c >> 2];
        v = enc64List[(0x00000003 & c) << 4 | d >> 4];
        w = enc64List[(0x0000000F & d) << 2 | e >> 6];
        x = enc64List[e & 0x0000003F];
        
        // handle padding to even out unevenly divisible string lengths
        if (end >= 1) {x = "=";}
        if (end == 2) {w = "=";}
        
        if (end < 3) {output += u + v + w + x;}
    }
    // format for 76-character line lengths per RFC
    var formattedOutput = "";
    var lineLength = 76;
    while (output.length > lineLength) {
      formattedOutput += output.substring(0, lineLength) + "\n";
      output = output.substring(lineLength);
    }
    formattedOutput += output;
    return formattedOutput;
}

function base64Decode(str) {
    var c=0, d=0, e=0, f=0, i=0, n=0;
    var input = str.split("");
    var output = "";
    var ptr = 0;
    do {
        f = input[ptr++].charCodeAt(0);
        i = dec64List[f];
        if ( f >= 0 && f < 128 && i != -1 ) {
            if ( n % 4 == 0 ) {
                c = i << 2;
            } else if ( n % 4 == 1 ) {
                c = c | ( i >> 4 );
                d = ( i & 0x0000000F ) << 4;
            } else if ( n % 4 == 2 ) {
                d = d | ( i >> 2 );
                e = ( i & 0x00000003 ) << 6;
            } else {
                e = e | i;
            }
            n++;
            if ( n % 4 == 0 ) {
                output += String.fromCharCode(c) + 
                          String.fromCharCode(d) + 
                          String.fromCharCode(e);
            }
        }
    }
    while (typeof input[ptr] != "undefined");
    output += (n % 4 == 3) ? String.fromCharCode(c) + String.fromCharCode(d) : 
              ((n % 4 == 2) ? String.fromCharCode(c) : "");
    return output;
}

// Self-initialize the global variables
initBase64();


function get_obj(objectId) {
	if(document.getElementById && document.getElementById(objectId)) {
		return document.getElementById(objectId);
	} else if (document.all && document.all(objectId)) {
		return document.all(objectId);
	} else if (document.layers && document.layers[objectId]) {
		return document.layers[objectId];
	} else {
		return false;
	}
}
function swap_pics(id1, id2, msg){
	var ptr = get_obj("item_aux_" + id1);
	var ptr2 = get_obj("item_aux_" + id2);
	ptr.innerHTML = "";
	ptr2.innerHTML = msg;
}
function submit_form(form_id){
	var ptr = get_obj(form_id);
	ptr.submit();
	return false;
}

function submit_form_by_enter(myfield, e, fnc) {
	var keycode;
	if (window.event) {
		keycode = window.event.keyCode;
	} else if (e) {
		keycode = e.which;
	} else {
		return true;
	}
	if (keycode == 13) {
		/* enter beep prevention */
		if (window.event) {
			window.event.keyCode = 0;
		} else if (e) {
			/*
			 * Not Valid!
			 * Error: setting a property that has only a getter
			 * Source File: http://daloco.com/design/dl.js
			 * Line: 63
			 * e.which = 0;
			 * */
		}
		/***/

		if (fnc) {
			fnc();
		} else {
			myfield.form.submit();
		}
		return false;
	} else {
		return true;
	}
}

function sa(o){
	o.focus();
	o.select();
}

function exportFhg(alias, catid){
	var url;
	var sep = get_obj("fhg_sep").value;
	if (!sep){
		sep = "|";
	}
	sep = base64Encode(sep);
	if (alias){
		url = "/webmasters/promote/" + alias + "/export/" + sep;
	} else {
		url = "/webmasters/c" + catid + "/export/" + sep;
	}
	var i = 0;
	var p = 0;
	for (i = 0; i< 5; i++){
		p = get_obj("fhg_f" + i);
		p = p.options[p.options.selectedIndex].value;
		url += "," + p;
	}
	var w=window.open(url, "", "_blank");
	w.focus();
}
function updateStats(){
	var f = get_obj("stats_from");
	f = f.options[f.options.selectedIndex].value;
	url = "/webmasters/stats/" + f;
	window.location = url;
}