var uploading = 'Uploading';

function check() {
	var filename = $('fileInput').value;
	return (filename != '');
}

function tweenTo() {
	  $('spn').tween('color', '#555');
	  setTimeout('tweenFro()', 1000);
	}

function tweenFro() {
	  $('spn').tween('color', '#fff');
	  setTimeout('tweenTo()', 2000);
}


function onUpload(){
	if (check()) {
		$('dl_path').focus();
	
		$('box').addClass = 'loading';
		$('theDrop').setStyle('background', "url(/img/drop_load.gif) no-repeat");
		$('spn').set('text', uploading);
		tweenTo();

		$('form_upload').submit();
	
	    return true;
	}
	return false;
}

window.addEvent("domready", function() {
	$('spn').set('tween', {duration: 1000});
	
	//--- footer language selector ---
	  var langPicker = $('language_picker');
	  var langExpanded = false;
	  langPicker.set('tween', {duration: 'short'});
	  langPicker.setStyles( { display: 'block', opacity: 0 });

	  el = $('footer_language_link');
	  el.addEvent('click', function(ev) {
		  if (langExpanded) langPicker.tween('opacity', 0);
		  else langPicker.tween('opacity', 1);
		  
		  langExpanded = !langExpanded;
	  });
	  
	  langPicker.addEvent('blur', function(ev) {
		  langPicker.tween('opacity', 0);
	  });
});