function $( id ) {
	return document.getElementById( id );
}

Dr = {
	
	dR: 0.3,
	
	Try: function() {
	
		for( var i = 0; i < arguments.length; i++ ) {
			var trying = arguments[ i ];
			try {
				return trying();
			} catch( e ) {}
		}
	},
	
	emptyFunction: function() {},
	
	ie: document.all,
	moz: document.getElementById && !document.all,
	safari: navigator.userAgent.indexOf( 'Safari' ) != -1

	
}

DrPage = {
	
	getScrollTop: function() {
		return Dr.ie ? document.body.scrollTop : window.pageYOffset 
	},
	getScrollLeft: function() {
		return Dr.ie ? document.body.scrollLeft : window.pageXOffset 
	},
	getWidth: function() {
		if( typeof( window.innerWidth ) == 'number' ) { return window.innerWidth; }
		if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { return document.documentElement.clientWidth; }
		if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { return document.body.clientWidth; }
	},
	getHeight: function() {
		if( typeof( window.innerHeight ) == 'number' ) { return window.innerHeight; }
		if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { return document.documentElement.clientHeight; }
		if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { return document.body.clientHeight; }
	}

}

DrEvent = {

	getX: function( e ) {
		return Dr.ie ? event.clientX + document.body.scrollLeft : e.pageX;
	},
	
	getY: function( e ) {
		return Dr.ie ? event.clientY + document.body.scrollTop : e.pageY;
	}
	
}

DrElement = {

	drElement: 0.2,
	
	setStyle: function( element, style ) {
		
		for( n in style ) {
			if ( typeof n != 'function' ) {
				element.style[ n ] = style[ n ];
			}
		}
		
	},
	
	searchClass: function( element, className ) {
	
		if( !element.className ) {
			return false;
		}
		
		var classNames = element.className.split( ' ' );
		
		for( var i = 0; i < classNames.length; i++ ) {
			if( classNames[ i ] == className ) {
				return true;
			}
		}
		
		return false;
		
	},
	
	create: function( parent, tagName, id, style, classNames ) {
	
		var element = document.createElement( tagName );
		
		if( id ) { element.setAttribute( 'id', id ); }
	
		if( style ) { DrElement.setStyle( element, style ); }
		
		if( classNames ) { element.className = typeof classNames == 'string' ? classNames : classNames.join( ' ' ); }
		
		parent.appendChild( element );

		return element;
		
	},
	
	setX: function( element, x ) {
		element.style.left = parseInt( x ) + 'px';
	},
	
	setY: function( element, y ) {
		element.style.top = parseInt( y ) + 'px';
	},
	
	moveTo: function( element, x, y ) {
		DrElement.setX( element, x );
		DrElement.setY( element, y );
	},
	
	show: function( element ) {
		element.style.display = 'block';
	},
	
	showInline: function( element ) {
		element.style.display = 'inline';
	},
	
	hide: function( element ) {
		element.style.display = 'none';
	},
	
	setOpacity: function( element, opacity ) {
		if( Dr.moz ) {
			element.style.opacity = opacity / 100;
		} else if( Dr.ie ) {
			if( element.style.filter.indexOf( 'alpha' ) == -1 ) {
				element.style.filter += ' alpha(opacity=' + opacity + ')';
			} else {
				element.filters.alpha.opacity = opacity;
			}
		}
	},
	
	fadeOut: function( element, time, kill, delay ) {
		
		if( delay > 0 ) {
			setTimeout( 'DrElement.fadeOut( $(\'' + element.id + '\'), ' + time + ', ' + kill + ')', delay );
			return;
		}

		if( !time ) { time = 500; }
		
		var steps = parseInt( time / 50 );
		for( var i =  steps; i > 0; i-- ) {
			setTimeout( 'DrElement.setOpacity( $( \'' + element.id + '\'), ' + ( 100 * i / steps ) + ' ) ', 50 * ( steps - i ) );
		}
		setTimeout( 'DrElement.hide( $(\'' + element.id + '\' ) )', time + 50 );
		if( kill ) {
			setTimeout( 'DrElement.kill( $(\'' + element.id + '\' ) )', time + 50 );
		}
	},
	
	fadeIn: function( element, time, delay ) {

		if( delay > 0 ) {
			setTimeout( 'DrElement.fadeIn( $(\'' + element.id + '\'), ' + time + ')', delay );
			return;
		}
		
		if( !time ) { time = 500; }
		var steps = parseInt( time / 50 );

		DrElement.setOpacity( element, 0 );
		DrElement.show( element );
		
		for( var i =  steps; i > 0; i-- ) {
			setTimeout( 'DrElement.setOpacity( $( \'' + element.id + '\'), ' + ( 100 * i / steps ) + ' ) ', 50 * i );
		}
	},

	kill: function( element, fade ) {

		if( fade ) {
			DrElement.fadeOut( element, 300, true );
		} else {
			element.parentNode.removeChild( element );
		}
	}
	
}

PopupTrasher = {
	
	opened: [],
	
	killEmAll: function( dontFade ) {
		
		for( var i in PopupTrasher.opened ) {
			if( PopupTrasher.opened[ i ] ) {
				PopupTrasher.killOne( PopupTrasher.opened[ i ], !dontFade );
			}
		}
		PopupTrasher.opened = [];
		
	},
	
	killOne: function( element, fade ) {
		for( var i in PopupTrasher.opened ) {
			if( PopupTrasher.opened[ i ] == element ) {
				PopupTrasher.opened[ i ] = null;
			}
		}
		DrElement.kill( element, fade );
	},
	
	click: function( e ) {

		function check( element, search ) {
			if( element == search || DrElement.searchClass( element, 'noPopupTrasher' ) ) {
				return true;
			}
			if ( element.parentNode ) {
				return check( element.parentNode, search )
			}
		}
		
		var target = ( e && e.target ) || ( event && event.srcElement );
		if( !target ) { return; }
		
		for( i in PopupTrasher.opened ) {

			if( check( target, PopupTrasher.opened[ i ] ) ) {
				return;
			}
			
		}
		
		PopupTrasher.killEmAll();
		
	},

	register: function( element ) {
		PopupTrasher.opened.push( element );
	},
	
	install: function() {
		document.body.onclick = PopupTrasher.click;
	}
	
}

String.prototype.htmlEntities = function() {

	var aChars = new Array (
		'&','à','á','â','ã','ä','å','æ','ç','è','é',
		'ê','ë','ì','í','î','ï','ð','ñ','ò','ó','ô',
		'õ','ö','ø','ù','ú','û','ü','ý','þ','ÿ','À',
		'�','Â','�','Ä','Å','Æ','Ç','�','É','Ê','Ë',
		'Ì','Í','Î','Ï','�','Ñ','Ò','Ó','Ô','Õ','Ö',
		'�','Ù','Ú','Û','Ü','Ý','Þ','€','\"','ß','<',
		'>','¢','£','¤','¥','¦','§','¨','©','ª','«',
		'¬','­','®','¯','°','±','²','³','´','µ','¶',
		'·','¸','¹','º','»','¼','½','¾'
	);

	var aEntities = new Array (
		'amp','agrave','aacute','acirc','atilde','auml','aring',
		'aelig','ccedil','egrave','eacute','ecirc','euml','igrave',
		'iacute','icirc','iuml','eth','ntilde','ograve','oacute',
		'ocirc','otilde','ouml','oslash','ugrave','uacute','ucirc',
		'uuml','yacute','thorn','yuml','Agrave','Aacute','Acirc',
		'Atilde','Auml','Aring','AElig','Ccedil','Egrave','Eacute',
		'Ecirc','Euml','Igrave','Iacute','Icirc','Iuml','ETH','Ntilde',
		'Ograve','Oacute','Ocirc','Otilde','Ouml','Oslash','Ugrave',
		'Uacute','Ucirc','Uuml','Yacute','THORN','euro','quot','szlig',
		'lt','gt','cent','pound','curren','yen','brvbar','sect','uml',
		'copy','ordf','laquo','not','shy','reg','macr','deg','plusmn',
		'sup2','sup3','acute','micro','para','middot','cedil','sup1',
		'ordm','raquo','frac14','frac12','frac34'
	);

	sNewString = this;
	for (var i = 0; i < aChars.length; i++) {
		oRE = new RegExp (aChars[i], 'g');
		sNewString = sNewString.replace (oRE, '&' + aEntities[i] + ';');
	}
	return sNewString;
}

var DrAjax = {

	version: 0.1,

	maxId: 0,
	requests: [],
	statuses: [ 'Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete', 'Error' ],

	XmlHttp: function() {

		return Dr.Try(
			function() { return new ActiveXObject( 'Msxml2.XMLHTTP' ) },
			function() { return new ActiveXObject( 'Microsoft.XMLHTTP' ) },
			function() { return new XMLHttpRequest() }
		) || false;

	},

	nextId: function() {

		return ++this.maxId;

	},

	sendRequest: function( url, handler, POST ) {

		var id = this.nextId();
		this.requests[ id ] = new this.Request( id, url, handler, POST );

	},

	deleteRequest: function( id ) {

		this.requests[ id ] = Dr.emptyFunction();

	},

	getResponse: function( id, type ) {

		var response = false;

		if( this.requests[ id ] ) {
			switch( this.statuses[ this.requests[ id ].getStatus() ] ) {
				case 'Complete':
						switch( type ) {
						case 'text':
							response = this.requests[ id ].getResponseText();
							break;
						case 'both':
							response = {
								'xml':	this.requests[ id ].getResponse(),
								'text':	this.requests[ id ].getResponseText()
							};
							break;
						default:
							response = this.requests[ id ].getResponse();
							break;
					}
					break;
				case 'Error':
					response = -1;
					break;
			}
		} else {
			return -1;
		}

		if( response ) {
			this.deleteRequest( id );
		}

		return response;

	},

	Request: function ( id, url, handler, POST ) {

		var responseXML = '';
		var responseText = '';
		var status = DrAjax.statuses[ 'Uninitialized' ];

		this.getStatus = function() {
			return status;
		}

		this.getResponse = function() {
			return responseXML;
		}

		this.getResponseText = function() {
			return responseText;
		}

		var XmlHttp = new DrAjax.XmlHttp();
		if( !XmlHttp ) {
			status = DrAjax.statuses[ 'Error' ];
			return false;
		}

		this.onReadyStateChange = function() {

			status = XmlHttp.readyState;

			if( DrAjax.statuses[ status ] == 'Complete' ) {

				if( XmlHttp.status >= 200 && XmlHttp.status < 300 ) {
					responseXML = XmlHttp.responseXML;
					responseText = XmlHttp.responseText;
				} else {
					status = 5;
				}

				handler( id, status );

				XmlHttp = Dr.emptyFunction;

			}


		}

		with( XmlHttp ) {

			onreadystatechange = this.onReadyStateChange;
			open( POST == null ? 'GET' : 'POST', url, true );
			if( POST ) {
				setRequestHeader( 'content-type', 'application/x-www-form-urlencoded' );	
			}
			send( POST === true ? null : POST );

		}

	}

}

Object.extend = function( destination, source ) {

	for( n in source ) {
		destination[ n ] = source[ n ];
	}

	return destination;

}







function request (sURL, sQS, sHandler) {

	if (window.XMLHttpRequest) { // code for Mozilla, Safari, etc
		xmlhttp = new XMLHttpRequest();
		xmlhttp.onreadystatechange = sHandler;
		xmlhttp.open ("POST", sURL, true);
		xmlhttp.setRequestHeader ("content-type", "application/x-www-form-urlencoded");
		xmlhttp.send (sQS);
	} else if (window.ActiveXObject) { //IE
		xmlhttp = new ActiveXObject ("Microsoft.XMLHTTP");
		if (xmlhttp) {
			xmlhttp.onreadystatechange = sHandler;
			xmlhttp.open ("POST", sURL, true);
			xmlhttp.setRequestHeader ("content-type", "application/x-www-form-urlencoded");
			xmlhttp.send (sQS);
		}
	}
}

function moveObj (sObj, e, iVerticalOffset) {

	var iTempX = 0;
	var iTempY = 0;
	var iOffset = 10;

	oObj = getObj (sObj);
	if (oObj == null) return;

	if (document.all) {
		iTempX = event.clientX + document.body.scrollLeft;
		iTempY = event.clientY + document.body.scrollTop;
	} else {
		iTempX = e.pageX;
		iTempY = e.pageY;
	}

	if (iTempX < 0) {iTempX = 0}
	if (iTempY < 0) {iTempY = 0}

	oObj.style.top = (iTempY + iOffset + iVerticalOffset) + 'px';
	oObj.style.left = (iTempX + iOffset) + 'px';

	displayObj (sObj, true);
}

function getObj (sObj) {

	if (document.getElementById) {
		return document.getElementById (sObj);
	} else if (document.all) {
		return document.all.item (sObj);
	} else {
		return null;
	}
}

function displayObj (sObj, bShow) {

	oObj = getObj (sObj);
	if (oObj == null) return;

	oObj.style.display = bShow ? 'block' : 'none';
	oObj.style.visibility = bShow ? 'visible' : 'hidden';
}




function tempUpdateCount ( field, maxLength ) { // Character counter
	
	var count = maxLength - $( field ).value.length;
	$( 'cnt_' + field ).innerHTML = count < maxLength ? count : '';
	$( 'cnt_' + field ).className = count < 0 ? 'charcountneg' : 'charcount';
	
}

function updateTopic ( field, maxLength )
{
	tempUpdateCount ( field, maxLength )
	tags = $('form_tags');
	radios = $('form_topics');
	aTags = tags.value.split(' ');
	html = '';
	for( i = 0; i < aTags.length; i++) {
		if( aTags[i] != '' && aTags[i] != ' ' ) {
			html += '<input type="radio" name="topic" value="' + aTags[i] + '" />' + aTags[i] + '<br />';
		}
	}
	if( html.length ) {
		html = '<big>Choose main tag: <span style="color: red;">*</span></big><br />' + html;
		DrElement.show( $( 'form_topics_help' ) )
	} else {
		DrElement.hide( $( 'form_topics_help' ) )
	}
	radios.innerHTML = html;
}


function CsCountdown( time, counter ) {
	
	var expireMessage, expireMessageLayer;

	this.setExpireMessage = function( layer, message ) {
		expireMessageLayer = layer;
		expireMessage = message;
	}
	
	function countdown() {
		$( counter ).innerHTML = clock (--time);
		if( time > 0 ) {
			scheduleCountdown();
		} else {
			if( expireMessage && expireMessageLayer ) {
				$( expireMessageLayer ).innerHTML = expireMessage;
			}
		}
	}

	function clock (seconds) {
		var min = Math.floor (seconds / 60);
		var sec = seconds % 60;
		sec = sec.toString();
		if (sec.length == 1) sec = '0'.concat (sec);
		return min + ":" + sec;
	}
	
	function scheduleCountdown() {
		setTimeout( countdown, 1000 );
	}

	scheduleCountdown();
	
}


function positionRegisterLayer() {

	var x = ( DrPage.getWidth() ) /2 - 244 + DrPage.getScrollLeft();
	var y = ( DrPage.getHeight() ) /2 - 170 + DrPage.getScrollTop();
	DrElement.moveTo( $( 'registerLayer' ), x > 0 ? x : 0, y > 0 ? y : 0 );
	
	
}

function hideRegisterLayer() {

	if( Dr.safari ) {
		DrElement.hide( $( 'registerLayer' ) );
	} else {
		DrElement.setOpacity( $( 'page' ), 100 );
		DrElement.fadeOut( $( 'registerLayer' ) );
	}
	
}

CsRegisterLayer = function( reason, loginUrl, launchPostReg ) {

	this.getResponse = function( id, status ) {	

		if( DrAjax.statuses[ status ] == 'Complete' ) {
			
			var xml = DrAjax.getResponse( id );
			
			var redirect = xml.getElementsByTagName("redirect").item(0);
			if ( redirect ) {
				self.location = redirect.getAttribute("url");
			} else {
				var error = xml.getElementsByTagName("e").item(0);
				if ( error ) {
					alert ( error.getAttribute("m") );
				} else {
					parseResponse( xml );
				}
			}

		}
			
	}
	
	var parseResponse = function( xml ) {
		if( xml ) {
			var response = xml.getElementsByTagName( 'r' ).item(0);

			if( response ) {
				$( 'registerLayer' ).innerHTML = response.getAttribute( 'c' );

				positionRegisterLayer();
				
				if( Dr.safari ) {
					DrElement.show( $( 'registerLayer' ) );
					DrElement.setOpacity( $( 'registerLayer' ), 100 );
				} else {
					DrElement.setOpacity( $( 'page' ), 30 );
					DrElement.fadeIn( $( 'registerLayer' ) );
				}

				window.onscroll = positionRegisterLayer;
				window.onresize = positionRegisterLayer;
				
			}
		}

	}
	
	DrAjax.sendRequest( 'AjaxServer.php', this.getResponse, 'call=User.getRegisterForm&reason=' + ( reason ? reason : '' ) + '&postreg=' + ( launchPostReg == true ? 1 : 0 ) + '&href=' + (loginUrl ? loginUrl : document.location.href.replace( /\+/, '%2B') ) );
	
}

var fixedRegLayer = false;

CsRegister = function( fixed, launchPostReg ) {

	this.getResponse = function( id, status ) {	

		if( DrAjax.statuses[ status ] == 'Complete' ) {
			
			var xml = DrAjax.getResponse( id );
			
			var redirect = xml.getElementsByTagName("redirect").item(0);
			if ( redirect ) {
				self.location = redirect.getAttribute("url");
			} else {
				var error = xml.getElementsByTagName("e").item(0);
				if ( error ) {
					alert ( error.getAttribute("m") );
				} else {
					parseResponse( xml );
				}
			}

		}
			
	}
	
	var parseResponse = function( xml ) {
		if( xml ) {
			var response = xml.getElementsByTagName( 'r' ).item(0);

			if( response ) {
				
				if( fixedRegLayer ) {
					DrElement.setOpacity( $( 'page' ), 100 );
					DrElement.hide( $( 'registerLayer' ) );
					$( 'regLayerFixed' ).innerHTML = response.getAttribute( 'c' );
				} else {
					
					$( 'registerLayer' ).innerHTML = response.getAttribute( 'c' );
	
					positionRegisterLayer();
					
					if( !Dr.safari ) {
						DrElement.setOpacity( $( 'page' ), 30 );
					}
					DrElement.show( $( 'registerLayer' ) );
					DrElement.setOpacity( $( 'registerLayer' ), 100 );
	
					window.onscroll = positionRegisterLayer;
					window.onresize = positionRegisterLayer;

				}
				
			}
		}
	}
	
	var username = $( 'reg_username' ) ? $( 'reg_username' ).value : null;
	var email = $( 'reg_email' ) ? $( 'reg_email' ).value : null;
	var pass1 = $( 'reg_pass1' ) ? $( 'reg_pass1' ).value : null;
	var pass2 = $( 'reg_pass2' ) ? $( 'reg_pass2' ).value : null;
	var agree = $( 'reg_agree' ) && $( 'reg_agree' ).checked ? 1 : 0;
	var o13 = $( 'reg_o13' ) && $( 'reg_o13' ).checked ? 1 : 0;
	fixedRegLayer = fixed;
	DrAjax.sendRequest( 'AjaxServer.php', this.getResponse, 'call=User.register&username=' + username + '&email=' + email + '&pass1=' + pass1 + '&pass2=' + pass2 + '&agree=' + agree + '&o13=' + o13 + '&href=' + document.location.href.replace( /\+/, '%2B') + '&fixed=' + fixed + '&postreg=' + ( launchPostReg ? 1 : 0 ) );
	
}