/* 
	j123 -- JavaScript common library
	mail: sebastian.hanula@gmail.com
	www:  http://www.hanula.com/lab/j123

	j123 core library
*/


j123 = {
	ver : { major:0,minor:1},
	
	onInitFunctions:[],
	registerOnInit : function(fn) {
		this.onInitFunctions.push(fn);
	},
	
	init: function() {
		for(var i=0;i<this.onInitFunctions.length;i++) {
			this.onInitFunctions[i]();
		}
	}
};

j123.browser = {
	isIE : null,
	isOpera:null,
	
	init : function() {
		var ua = navigator.userAgent.toLowerCase(); 
		j123.browser.isIE = (ua.indexOf('msie') != -1);
		j123.browser.isOpera  = (ua.indexOf('opera') != -1); 
	}	
};
j123.registerOnInit(j123.browser.init);


j123.common = {
	each : function(arr,fn) {
		for(var i=0;i<arr.length;i++) fn(arr[i]);
	},
	init: function() {
				
	}
};
j123.registerOnInit(j123.common.init);


/////////// 		HTML 

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

function findPosX(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;
};

j123.HTML = {
	showElement : function(el) {
		if(j123.browser.isIE) {
			
		}
		el.style.visibility.display = 'visible';
	},
	hideElement: function(el) {
		el.style.visiblity = 'hidden';
	},
	
	removeElement: function(el) {
		if(el.parentNode) el.parentNode.removeChild(el);
	},
	
	// a przed b
	moveBefore: function(a,b) {
		b.parentNode.insertBefore(a,b);		
		j123.HTML.removeElement(a);
	},
	
	// a za b
	moveAfter : function(a,b) {
		a.parentNode.insertBefore(a, a ? b.nextSibling :null);
		ji123.HTML.removeElement(a);
	},
	
	findPosY : function(el) {
		var curtop = 0;
		if (el.offsetParent) {
			while (el.offsetParent) {
				curtop += el.offsetTop
				el = el.offsetParent;
			}
		}
		else if (el.y)
			curtop += el.y;
		return curtop;
	},
	findPosX : function(el) {
		var curleft = 0;
		if (el.offsetParent) {
			while (el.offsetParent)	{
				curleft += el.offsetLeft
				el = el.offsetParent;
			}
		}
		else if (el.x)
			curleft += el.x;
		return curleft;
	},
	setTextContent :function(el,content) {
		if(j123.browser.isIE || j123.browser.isOpera) el.innerText = content;
		else el.textContent = content;
	},
	getTextContent :function(el) {
		if(j123.browser.isIE || j123.browser.isOpera) return el.innerText;
		else return el.textContent;
	}
	
	// TODO CSS
};