/*
 * General javascript functions
 */

Object.extend(String,
{ capitalize : function()
	{
		return this.charAt(0).toUpperCase() + this.slice(1);
	}
});

function ajaxRequest(url, onSuccess, pars, method, asynchronous, spinnerDiv, debug)
{
	var elmId = onSuccess;
	
	if (typeof(spinnerDiv) != 'undefined' && $(spinnerDiv))
	{
		$(spinnerDiv).innerHTML = '<img src="/images/spinner.gif">';
	}
	
	if (typeof(asynchronous) == 'undefined')
	{
		asynchronous = true;
	}
	
	if (elmId && $(elmId) && $(elmId).id)
	{
		onSuccess = function(resp)
		{
			if (debug)
			{
				alert(resp.responseText);
			}
			
			//$(elmId).update(resp.responseText);
			
			$(elmId).innerHTML = resp.responseText;
			$(elmId).innerHTML.evalScripts();
		};
	}
	
	if (!pars)
	{
		pars = '';
	}

	if (!method)
	{
		method = 'POST';
	}
	
	new Ajax.Request
	(
		url,
		{
			method: method,
			parameters: pars,
			onSuccess: onSuccess,
			asynchronous: asynchronous
		}
	);
}

function ajaxCall(subsection, action, parameters, respFunction, confirmText, url)
{
	var func = function(resp)
	{
		if(resp.responseText)
		{
			var error = resp.responseText.evalJSON();
			
			if(error && error.error)
			{
				setStatusMessage(error.message, "error");
			}
			else
			{
				eval(respFunction);
			}
		}
	}
		
	if (!confirmText || confirm(confirmText))
	{
		if (typeof(url) == 'undefined')
			url = '';
		
		var get = url+"?";
		var post = "";
		
		if(subsection != null)
		{
			get += "subsection="+subsection;
		}
		if(action != null)
		{
			get += (get == "?" ? '' : "&") + "action="+action;
		}
		
		for(var name in parameters) 
		{
			post += (post == "" ? "" : "&") + name + "=" + parameters[name]; 
		}

		return ajaxRequest(get, func, post, "post");
	}
	
	return false;
}

function mail(code)
{
	var decoded = "";

	splitString = code.split(".");
	for (var i = 0; i < splitString.length; i++)
	{
		decoded += String.fromCharCode(splitString[i]-10);	
	}

	window.location.href = "mailto:" + decoded;
}

function readMore(anchor, elmId)
{
	if (!$(elmId).visible())
	{
		Effect.SlideDown(elmId);
		anchor.hide();
	}
}

/*
 * Swap images
 */

var currentSwapImageElm = false;
var swapImageTimer = false;

function moveToSwapImage(imageId)
{
	var interval = 12000;
	
	Effect.Queues.get('swapImages').each(function(e) { e.cancel() });
	clearTimeout(swapImageTimer);
	hideSwapImageElm(currentSwapImageElm);
	showSwapImageElm($('swap_image_'+imageId));
	
	swapImageTimer = setTimeout(function () { swapImageChanger(); }, interval);
}

function setSwapImageSelector(elm, state)
{
	var elmId = elm.identify();
	var imageId = elmId.substr(elmId.lastIndexOf('_')+1, elmId.length-1);
	
	if ($('swap_image_selector_'+imageId))
	{
		if (state)
			$('swap_image_selector_'+imageId).addClassName('active');
		else
			$('swap_image_selector_'+imageId).removeClassName('active');
	}
}

function showSwapImageElm(elm)
{
	var duration = 1.5;
	
	if (elm)
	{
		new Effect.Appear(elm, { duration: duration, queue: { position: 'end', scope: 'swapImages', limit: 2} });
		currentSwapImageElm = elm;
		setSwapImageSelector(elm, true);
	}
}

function hideSwapImageElm(elm)
{
	var duration = 1.5;

	if (elm)
	{
		new Effect.Fade(elm, { duration: duration, queue: {position: 'end', scope: 'swapImages', limit: 2} });
		setSwapImageSelector(elm, false);
	}
}

function getNextSwapImageElm()
{
	var elms = $$('div.swapImage');
	var next = false;
	var first = false;
	var result = false;
	var counter = 1;
	
	elms.each(function(elm, index)
	{
		if (!currentSwapImageElm || next)
		{
			result = elm;
			throw $break;
		}
		
		if (!first)
			first = elm;
		
		if (elm == currentSwapImageElm)
			next = true;
		
		if (next && elms.length == counter)
		{
			result = first;
			throw $break;
		}
		
		counter++;
	} );
	
	return result;
}

function swapImageChanger()
{
	var interval = 12000;
	
	hideSwapImageElm(currentSwapImageElm);
	showSwapImageElm(getNextSwapImageElm());
	
	swapImageTimer = setTimeout(function () { swapImageChanger(); }, interval);
}