var global_arc90_boxid = "";

function arc90_addClassName(){
	var box = document.getElementById(global_arc90_boxid);
	var allpics = box.getElementsByTagName('img');
	for(var i=0; i<allpics.length; i++){
		if(allpics[i].alt.length>10)
		allpics[i].className = "imgcaption";
	}	
}

/*

Image Caption v1.3
(c) Arc90, Inc.

http://www.arc90.com
http://lab.arc90.com

Licensed under : Creative Commons Attribution 2.5 http://creativecommons.org/licenses/by/2.5/

*/

/* Globals */
var arc90_navigator = navigator.userAgent.toLowerCase();
var arc90_isOpera = arc90_navigator.indexOf('opera') >= 0? true: false;
var arc90_isIE = arc90_navigator.indexOf('msie') >= 0 && !arc90_isOpera? true: false;
var arc90_isSafari = arc90_navigator.indexOf('safari') >= 0 || arc90_navigator.indexOf('khtml') >= 0? true: false;

function arc90_imgcaption(){
	var O = document.getElementsByTagName('P'); // For safari???
	for (var i = 0, l = O.length; i < l; i++)
		O[i].appendChild(arc90_newNode('span'));
		
		var O = document.getElementsByTagName('IMG');
		for (i = 0, l = O.length; i < l; i++) {
			var o = O[i];
			arc90_addClassName();
			if (o != null && o.className && o.className.indexOf('imgcaption') >= 0) {
				try {
					var f = o.className.replace(/(.*)float(l|r)(.*)/, '$2');
					var s = arc90_newNode('div', 'arc90_imcaption'+ i, 'arc90_imgcaption'+ (f.length == 1? ' float'+ f: ' floatl'));
	
					var I = o.cloneNode(true);
					I.className = 'arc90_imgcaptionIMG';
	
					s.appendChild(I);
					
					var x = arc90_newNode('p', '', 'arc90_imgcaptionTXT');
					var y = arc90_newNode('p', '', 'arc90_imgcaptionALT');
					var z = arc90_newNode('span', '', 'arc90_imgcaptionALT');
	
					if (o.alt != '') {
						z.innerHTML = arc90_gtlt(o.alt);
						y.appendChild(z);
						s.appendChild(y);
					}
					/*
					if (o.title != '') {
						x.innerHTML = arc90_gtlt(o.title);
						s.appendChild(x);
					}
					*/
					o.parentNode.insertBefore(s, o);
					o.parentNode.removeChild(o);
	
					if (document.all || arc90_isSafari) {
						var w = parseInt(I.offsetWidth);
						if (w != '')
							s.style.width = w +'px';
					} else {
						w = arc90_getStyle(I, 'width', 'width');
						if (w != '') {
							s.style.width = (parseInt(w)) + 'px';
							x.style.width = (parseInt(w)) + 'px';
							y.style.width = (parseInt(w)) + 'px';
						}
					}
				} catch (err) { o = null; }
			}
		}
	var O = document.getElementsByTagName('P'); // For safari???
	for (i = 0, l = O.length; i < l; i++)
		O[i].appendChild(arc90_newNode('span'));
}

function arc90_gtlt(s) {
	s = s.replace(/&gt;/g, '>');
	s = s.replace(/&lt;/g, '<');
	return s;
}

function arc90_getStyle(obj, styleIE, styleMoz) {
	if (arc90_isString(obj)) obj = document.getElementById(obj);
	if (window.getComputedStyle)
		return document.defaultView.getComputedStyle(obj, null).getPropertyValue(styleMoz);
	else if (obj.currentStyle)
		return obj.currentStyle[styleIE];
}

function arc90_findDimension(obj, pType) {
	if (arc90_isString(obj)) obj = document.getElementById(obj);
	var cur = 0;
	if(obj.offsetParent)
		while(obj.offsetParent) {
			switch(pType.toLowerCase()) {
			case "width":
				cur += obj.offsetWidth; break;
			case "height":
				cur += obj.offsetHeight; break;
			case "top":
				cur += obj.offsetTop; break;
			case "left":
				cur += obj.offsetLeft; break;
			}
			obj = obj.offsetParent;
		}
	return cur;
}

/* Events */
function arc90_isString(o) { return (typeof(o) == "string"); }

function arc90_addEvent(e, meth, func, cap) {
	if(arc90_isString(e))	e = document.getElementById(e);
	
	if(e.addEventListener){
		e.addEventListener(meth, func, cap);
    	return true;
	} else if (e.attachEvent)
		return e.attachEvent("on"+ meth, func);

	return false;
}

/* Nodes */
function arc90_newNode(t, i, s, x, c) {
	var node = document.createElement(t);
	if (x != null && x != '') {
		var n = document.createTextNode(x);
		node.appendChild(n);
	}
	if (i != null && i != '')
		node.id = i;
	if (s != null && s != '')
		node.className = s;
	if (c != null && c != '')
		node.appendChild(c);
	return node;
}

function imageCaption(id){
	if(id.length == 0 || !document.getElementById(id)) return false;
	global_arc90_boxid = id;
	arc90_imgcaption();
}

//arc90_addEvent(window, 'load', arc90_imgcaption);