var uploadInProgress = false;
var postFormAction = '';
var progressInterval = 0;

function upload(action, sid)
{
	uploadInProgress = true;
	$('#upload_form').submit();
	$('#submit_button').disabled = true;
	postFormAction = action;
	startProgress(sid);
}

function uploaded()
{
	if (uploadInProgress) 
	{
		endProgress();
		
		var res = $($("#upload_iframe")[0].contentWindow.document).find('body').text();
		if (res == '0')
		{
			var pform = $('#post_form');
			pform.attr('action', postFormAction);
			pform.submit();
		}
		else
		{
			$('#submit_button').disabled = false;
			alert('Nalaganje datoteke ni uspelo. Poskusite ponovno.');
		}
		uploadInProgress = false;
	}
}

function checkProgress(sid)
{
	$('#progress_div').load('progress.php?sid=' + sid);
}

function startProgress(sid)
{
	checkProgress(sid);
	progressInterval = setInterval("checkProgress('"+ sid+ "')", '', 500);
}

function endProgress()
{
	clearInterval(progressInterval);
}


//menu functions
function toogleSubMenu(id)
{
	$(id).slideToggle(300);
}


//image popup functions
function openImagePopup(imgfn)
{
	if ($('#image_popup_image').remove())
		$('#image_popup_image').remove();
	$('#image_popup_container').prepend('<img id="image_popup_image" src="' + imgfn + '">');
	$('#image_popup').fadeIn(500);	
}

function closeImagePopup()
{
	$('#image_popup').fadeOut(500);
}

//events


$(document).ready(function()
{
	//loadFirst();
	//loadSecond();
	//imgShow = 1;
	//showFirst();
	//var jajc = setInterval('interval()', 20000);

});