/**
 * CONECTO Javascript Library
 * @author	Alexander Dick <a.dick@conecto.at>
 * @version	0.9
 */
CONECTO = {
		
	getWindowHeight: function() {
		var de = document.documentElement;	
		return self.innerHeight || (de && de.clientHeight) || document.body.clientHeight;
	}, 

	getWindowWidth: function() {
		var de = document.documentElement;	
		return self.innerWidth || (de && de.clientWidth) || document.body.clientWidth;
	}, 
	
	getScrollX: function() {
	    var de = document.documentElement;
		return self.pageXOffset || (de && de.scrollLeft) || document.body.scrollLeft;
	},
	
	getScrollY: function() {
		var de = document.documentElement;
   		return self.pageYOffset || (de && de.scrollTop) || document.body.scrollTop;		
	},
		
	css: {
		
		//Liefert den Wert einer css Eigenschaft
		getStyle: function(el, name) {
	
			if (el.style[name])
				return el.style[name];		
			else if (el.currentStyle)
				return el.currentStyle[name];		
			else if (document.defaultView && document.defaultView.getComputedStyle) {
				name = name.replace(/([A-Z])/g,"-$1");
				name = name.toLowerCase();		
				var s = document.defaultView.getComputedStyle(el,"");
				return s && s.getPropertyValue(name);	
			} else
				return null;
		},
		
		resetCSS: function(el, prop) {
    		var alt = {};

			for (var i in prop) {
				alt[ i ] = el.style[ i ];
		
				el.style[ i ] = prop[i];
			}

			return alt;
		},

		restoreCSS: function(el, prop) {
			for (var i in prop)
				el.style[ i ] = prop[ i ];
		},
		
		//Liefert die Höhe eines Elements (nur der css eigenschaft)
		getHeight: function(el) {
			return parseInt(this.getStyle(el, "height"));
		},
		
		//Liefert die Breite eines Elements (nur der css eigenschaft)
		getWidth: function(el) {
			return parseInt(this.getStyle(el, "width"));
		},
		
		//Liefert die "richtige" Höhe eines Elements (berechnet)
		getFullHeight: function(el) {
			
		    if(this.getStyle(el, "display") != "none")
        		return el.offsetHeight || this.getHeight(el);
		
			var alt = this.resetCSS(el, {
				display: "",
				visibility: "hidden",
				position: "absolute"
			});
		
			var h = el.clientHeight || this.getHeight(el);
		
			this.restoreCSS(el, alt);
		
			return h;
		},

		//Liefert die "richtige" Breite eines Elements (berechnet)
		getFullWidth: function(el) {

			if (this.getStyle(el, "display") != "none")
				return el.offsetWidth || this.getWidth(el);

			var alt = this.resetCSS(el, {
				display: "",
				visibility: "hidden",
				position: "absolute"
			});

			var w = el.clientWidth || this.getWidth(el);
		
			this.restoreCSS(el, alt);
		
			return w;
		},
		
		//Versteckt ein Element
		hide: function(el) {
			var curDisplay = this.getStyle(el, "display");

			if (curDisplay != "none")
				el.$oldDisplay = curDisplay;
		
			el.style.display = "none";
		},
		
		//Zeigt ein Element
		show: function(el) {
			el.style.display = el.$oldDisplay || "block";
		},
		
		//Setzt die Opacity
		setOpacity: function(el, level) {
			if(el.filters)
        		el.filters.alpha.opacity = level;
			else
				el.style.opacity = (level / 100);
		},
		
		//fadet ein Element ein
		fadeIn: function(el, duration, callback) {			

			this.setOpacity(el, 0);
			
			cb = callback || function() { };
			duration = duration || 1000;
			var speed = (duration/100);

			this.show(el);

			for (var i = 0; i <= 100; i += 5) {

				(function(){
					var pos = i; 
		
					setTimeout(function(){
		
						CONECTO.css.setOpacity(el, pos);
		
						if(pos == 100)
							cb();
		
					}, (pos + 1) * speed);
				})();
			}
		},
		
		//Fadet ein Element aus...
		fadeOut: function(el, duration, callback) {
	
    		this.setOpacity(el, 100);
			
			cb = callback || function() { };
			duration = duration || 1000;
			
			var speed = (duration/100);

			for (var i = 0; i <= 100; i += 5) {
				(function(){
					var pos = i; 
					setTimeout(function(){
		
						CONECTO.css.setOpacity(el, (100-pos));
						
						if(pos == 100)
							cb();
						
					}, pos * speed);
				})();
			}
		},
			
		//liefert die X position
		posX: function(el) {
			var p = 0;
			while ( el.offsetParent ) {
				p += el.offsetLeft;		
				el = el.offsetParent;
			}
			return p;		
		},
		
		//Lieft die Y Position
		posY: function(el) {
			var p = 0;
			while ( el.offsetParent ) {
				p += el.offsetTop;
				el = el.offsetParent;
			}
			return p;		
		}
	},
	
	dom: {
		
		//Liefert den parentNode
		parent: function(el, num) {
			num = num || 1;
			for (var i = 0; i < num; i++)
				if (el != null) 
					el = el.parentNode;
			return el;
		},
		
		//Liefert das vorige element (prevSibling)
		prev: function(el) {
			do {
				el = el.previousSibling;
			} while (el && el.nodeType != 1);
			return el;
		},
		
		//Liefert das nächste Element (nextSibling)
		next: function(el) {
			do {
				el = el.nextSibling;
			} while (el && el.nodeType != 1);
			return el;
		},
		
		//Liefert die Kinder
		children: function(el) {
			var nodes = [];
			var node = el.firstChild;
			while(node) {
				if(node.nodeType != 3 && node.nodeType != 8) 
					nodes.push(node);
				node = node.nextSibling;
			}
			return nodes;
		},
		
		//Liefert das erste Kind
		firstChild: function(el) {
			var node = el.firstChild;
			while(node) {
				if(node.nodeType != 3 && node.nodeType != 8) 
					return node;
				node = node.nextSibling;
			}
			return null;
		},
		
		//Element entfernen
		remove: function(el) {
			if(el) 
				el.parentNode.removeChild(el);
		},
		
		//Alle Kindelemente entfernen
		empty: function(el) {
			while(el.firstChild)
				this.remove(el.firstChild);
		},
		
		//setzt ein Attribut
		setAttr: function(el, name, value) {
			
			if (!name || name.constructor != String) 
				return;

			name = {"for": "htmlFor", "class": "className"}[name] || name;
		
			if(value != null) {				
				
				if(name == "className") {
					if (!this.hasAttr(el, "class")) 
						el.className = value;	
					else 
						el.className += " " + value;
						
					return;				
				}				
				
				el[name] = value;
		
				if(el.setAttribute)
					el.setAttribute(name, value);
			}

			return el[name] || el.getAttribute(name) || '';
		},
		
		//Liefert ein Attribut
		getAttr: function(el, name) {
			
			if (!name || name.constructor != String) 
				return;

			name = { "for": "htmlFor", "class": "className" }[name] || name;
		
			return el[name] || el.getAttribute(name) || null;
		},
		
		//hat ein element das Attribut?
		hasAttr: function(el, name) {
//			return (el.getAttribute(name) != null);
			return (this.getAttr(el, name) != null);
		},		
		
		//Checkt ob ein Element den Klassennamen hat
		hasClass: function(el, name) {
    		var regexp = new RegExp("(^|\\s)" + name + "(\\s|$)");
	        return regexp.test(el.className);
		}, 
		
		//addClass...
		addClass: function(el, name) {		
			return this.setAttr(el, "class", name);			
		}
	},
	
	//Diverses
	div: {
		
		//fixt im IE6 die pngs 
		//(nur für normale Bilder die mit <img> eingefügt werden. nicht für Hintergrundbilder)
		fixPng: function(){			
			if(CONECTO.browser.isIE6() && (document.body.filters)) {
				for (var i = 0; i < document.images.length; i++) {
					var img = document.images[i];
					var imgName = img.src.toUpperCase();
					if (imgName.substring(imgName.length - 3, imgName.length) == "PNG") {
						var imgID = (img.id) ? 'id="' + img.id + '" ' : '';
						var imgClass = (img.className) ? 'class="' + img.className + '" ' : '';
						var imgTitle = (img.title) ? 'title="' + img.title + '" ' : 'title="' + img.alt + '" ';
						var imgStyle = 'display:inline-block;' + img.style.cssText;
						if (img.align == 'left') 
							imgStyle = 'float:left;' + imgStyle;
						if (img.align == 'right') 
							imgStyle = 'float:right;' + imgStyle;
						if (img.parentElement.href) 
							imgStyle = 'cursor:hand;' + imgStyle;
						var strNewHTML = '<span ' + imgID + imgClass + imgTitle + ' style="width:' + img.width + 'px; height:' + img.height +	'px;' +	imgStyle + ';' + 'filter:progid:DXImageTransform.Microsoft.AlphaImageLoader' + '(src=\'' + img.src + '\', sizingMethod=\'scale\');"></span>';
						img.outerHTML = strNewHTML;
						i = i - 1;
					}
				}
			}
		},
		
		//Sucht alle Tabellen im Dokument 
		//und fügt als Klasse bei den <tr>s even + odd ein
		zebraTables: function() {
	
			var bodies = document.getElementsByTagName("tbody");
			
			for(var i in bodies) {
				var rows = CONECTO.dom.children(bodies[i]); 
				var x = 0;
				for(var j in rows) {
					
					if(x%2 == 0)
						var className = "even";
					else
						var className = "odd";
						
					CONECTO.dom.addClass(rows[j], className);
					x++;
				}
			}
			return;
		},
		
		//Liefert ein key/value paar Objekt des Querystrings
		parseQueryString: function() {
			
			var str = window.location.search;
			var objURL = {};
		
			str.replace(
				new RegExp( "([^?=&]+)(=([^&]*))?", "g" ),
				function( $0, $1, $2, $3 ){
					objURL[ $1 ] = $3;
				}
			);
			return objURL;
		},
		
		//Fügt einen Parameter zum Querystring hinzu
		addQueryStringParam: function(key, value) {
		    
			key = escape(key); 
			value = escape(value);
		
		    var kvp = window.location.search.substr(1).split('&');
		
		    var i = kvp.length; 
			var x; 
			while(i--) {
		        x = kvp[i].split('=');
		
		        if (x[0]==key) {
	                x[1] = value;
	                kvp[i] = x.join('=');
	                break;
		        }
		    }
		
		    if(i < 0)
				kvp[kvp.length] = [key,value].join('=');
		
		    window.location.search = kvp.join('&');
		}
	},
	
	//Browser erkennungen
	browser: {
		isIE: function() {
			return (/MSIE (\d+\.\d+);/.test(navigator.userAgent));
		},
		isIE6: function() {
			return (this.isIE() && this.ieVersion() == 6);
		}, 
		ieVersion: function() {
			var rv = -1;
			if(navigator.appName == 'Microsoft Internet Explorer') {
				var ua = navigator.userAgent;
				var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
				if (re.exec(ua) != null)
					rv = parseFloat( RegExp.$1 );
			}
			return rv;
		}
	},
	
	//Cookie
	cookie: {
		create: function(name, value, days){
			if(days) {
				var date = new Date();
				date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
				var expires = "; expires=" + date.toGMTString();
			} else {
				var expires = "";
			}
			document.cookie = name + "=" + value + expires + "; path=/";
		},
		
		read: function(name){
			var nameEQ = name + "=";
			var ca = document.cookie.split(';');
			for (var i = 0; i < ca.length; i++) {
				var c = ca[i];
				while (c.charAt(0) == ' ') 
					c = c.substring(1, c.length);
				if (c.indexOf(nameEQ) == 0) 
					return c.substring(nameEQ.length, c.length);
			}
			return null;
		},
		erase: function(name){
			this.create(name, "", -1);
		}
	}
};