var Base64 = {
    // private property
    _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
    // public method for encoding
    encode : function (input) {
        var output = "";
        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
        var i = 0;
        input = Base64._utf8_encode(input);
        while (i < input.length) {
            chr1 = input.charCodeAt(i++);
            chr2 = input.charCodeAt(i++);
            chr3 = input.charCodeAt(i++);
            enc1 = chr1 >> 2;
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
            enc4 = chr3 & 63;
            if (isNaN(chr2)) {
                enc3 = enc4 = 64;
            } else if (isNaN(chr3)) {
                enc4 = 64;
            }
            output = output +
            this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
            this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
        }
        return output;
    },
    // public method for decoding
    decode : function (input) {
        var output = "";
        var chr1, chr2, chr3;
        var enc1, enc2, enc3, enc4;
        var i = 0;
        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
        while (i < input.length) {
            enc1 = this._keyStr.indexOf(input.charAt(i++));
            enc2 = this._keyStr.indexOf(input.charAt(i++));
            enc3 = this._keyStr.indexOf(input.charAt(i++));
            enc4 = this._keyStr.indexOf(input.charAt(i++));
            chr1 = (enc1 << 2) | (enc2 >> 4);
            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
            chr3 = ((enc3 & 3) << 6) | enc4;
            output = output + String.fromCharCode(chr1);
            if (enc3 != 64) {
                output = output + String.fromCharCode(chr2);
            }
            if (enc4 != 64) {
                output = output + String.fromCharCode(chr3);
            }
        }
        output = Base64._utf8_decode(output);
        return output;
    },
    // private method for UTF-8 encoding
    _utf8_encode : function (string) {
        string = string.replace(/\r\n/g,"\n");
        var utftext = "";
        for (var n = 0; n < string.length; n++) {
            var c = string.charCodeAt(n);
            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }
        }
        return utftext;
    },
    // private method for UTF-8 decoding
    _utf8_decode : function (utftext) {
        var string = "";
        var i = 0;
        var c = c1 = c2 = 0;
        while ( i < utftext.length ) {
            c = utftext.charCodeAt(i);
            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            }
            else if((c > 191) && (c < 224)) {
                c2 = utftext.charCodeAt(i+1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            }
            else {
                c2 = utftext.charCodeAt(i+1);
                c3 = utftext.charCodeAt(i+2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }
        }
        return string;
    }
}

function getElement( id ) {
    return ( document.all ) ? document.all[ id ] : document.getElementById( id );
}

function setCookie( name, value, expires ) {
	document.cookie = name + '=' + value + ';';
	if( expires != '' && expires != undefined ) {
		document.cookie += "expires=" + cookieDate ( time + expires ) + ';';
	}
}

function elementExists( id ) {
	return getElement( id ) != null;
}

function Sleep( ms ) {
    var exitTime = (new Date()).getTime() + ms;
	while(true) {
		if( (new Date()).getTime() > exitTime ) {
			return;
		}
	}
}

function get_tags(txt) {
	if(txt!='') {
		$.ajax({type:'POST',url:'/autotags',data:'tag='+txt,success:show_get_tags});
	}
}

function show2 (){
	console.log(tags);
}

var tags = new Array();

function show_get_tags( msg) {
	eval(msg);
	suggestions = tags;
	me.inputText = txt;
    if( txt != '' && suggestions.length > 0 ) {
		me.getEligible( suggestions );
		me.createDiv();
	   	me.positionDiv();
		me.showDiv();
	} else {
		me.hideDiv();
	}
}

function default_input_value(field, value) {	
	
	if (field.value == value) { 
		field.style.color='#000000';
		field.value = '';
		return;
	}
	if (field.value == '') {
		field.style.color='#888888';
		field.value = value;
	}
}

//ta funkcja JEST uzywana
function default_input_values(f) {
	var j=0;
	var z=0;
	for(var i=0; i<f.elements.length; i++) {
		j = i-2;
		z = j-5;
		if(f.elements[i].type == 'text' && (f.elements[i].name == 'invite['+j+'][name]'  || f.elements[i].name == 'invite['+z+'][mail]' || f.elements[i].name == 'subject')) {
			default_value = '';
			for(var j=0; j<f.elements[0].attributes.length; j++) {
				if (f.elements[i].attributes[j].nodeName == 'onfocus') {
					default_value = f.elements[i].attributes[j].nodeValue.match(/'([^']+)'/)[1];
				}
			}
			default_input_value(f.elements[i], default_value);
		}
	}
}

//wbrew pozorom, ta funkcja JEST uzywana
function remove_default_values(f) {
	var j=0;
	var z=0;
	for(var i=0; i<f.elements.length; i++) {
		j = i-2;
		z = j-5;
		if(f.elements[i].type == 'text' && (f.elements[i].name == 'invite['+j+'][name]' || f.elements[i].name == 'invite['+z+'][mail]')) {
			for(var j=0; j<f.elements[0].attributes.length; j++) {
				if (f.elements[i].attributes[j].nodeName == 'onfocus') {
					if (f.elements[i].value == f.elements[i].attributes[j].nodeValue.match(/'([^']+)'/)[1]) {
						f.elements[i].value = '';
					}
				}
			}
		}
	}
}

String.prototype.trim = function() { 
	return this.replace(/^\s+|\s+$/, ''); 
};

function uplavatar(x) {
  document.getElementById('uploadavatar').value = 1;
  x.submit();
}

function findX( obj ) {
	var curleft = 0;
	if ( obj.offsetParent ) {
		while (obj.offsetParent) {
			curleft += obj.offsetLeft;
			obj = obj.offsetParent;
		}
	} else {
		if (obj.x) {
			curleft += obj.x;
		}
	}
	return curleft;
}
									
function findY( obj ) {
	var curtop = 0;
	if ( obj.offsetParent ) {
		while ( obj.offsetParent ) {
			curtop += obj.offsetTop;
			obj = obj.offsetParent;
		}
	}
	else {
		if (obj.y) {
			curtop += obj.y;
		}
	}
	return curtop;
}


function openWindow( contentID, popupID, linkID, offsetY, offsetX ) {
	var w = $('#' + linkID).get(0);
	var offsetY = ( offsetY == undefined ? 0 : offsetY );
	var offsetX = ( offsetX == undefined ? 0 : offsetX );
	$('#' + contentID).block();
	$('#' + popupID).css({position: 'absolute', cursor: 'default', left:(findX(w)-offsetX), top:(findY(w)-offsetY), 'z-index':2000 } ).fadeIn();
}
function elementVisible( elementID, visible ) {
	if (visible)
		 $('#' + elementID).css({display: 'block'});
	else 
		 $('#' + elementID).css({display: 'none'});
}
function closeWindow( contentID, popupID ) {
	$('#' + contentID).unblock();
	$('#' + popupID).fadeOut('slow');
	
}

function unescapeHTML(text) { 
    var tmp = text.replace(/&amp;/g,'&');
		tmp = tmp.replace(/&gt;/g,'>')
		tmp = tmp.replace(/&lt;/g,'<')
		tmp = tmp.replace(/&quot;/g,'"');
    return tmp; 
};

function changePlace( value ){
	
	document.getElementById('act_cat_1').style.display = 'none';
	document.getElementById('act_cat_2').style.display = 'none';
	if (value == 'radio_1')
		document.getElementById('act_cat_1').style.display = 'block';
	
	if (value == 'radio_2')
		document.getElementById('act_cat_2').style.display = 'block';
	
}