function deleteProject(hash, ismy) {
	if (!confirm('Do you realy want to delete selected project?')) return;

	var project = $('project_' + hash);

	if (project) {
		var parentObj = project.parentNode;
		parentObj.removeChild(project);
		
		var childs = parentObj.getElementsByTagName('LI');
		
		if (!childs || !childs.length) 
		{
			var element = ismy ? $('myprojects') : $('viewed');
			element.parentNode.removeChild(element);
		}
		
		if (!$('viewed') && !$('myprojects')) 
		{
			var element = $('screenshot_replacement');
			Element.setOpacity(element,0);
			element.style.display = 'block';
			new Effect.Opacity(element, {from: 0, to: 100, duration: 20});
		}
	}

	var req = new Ajax.Request(
			"/server/todos.php", 
			{
				method: 'get', 
				asynchronous: true, 
				parameters: 'do=delete_project&hash=' + hash + '&my=' + ismy
			}
		);
	
}

function overProject(element) {
	var element = $(element);
	var linkObjs = element.getElementsByTagName('A');

	if (linkObjs) {
		linkObjs[1].style.visibility = 'visible';
	}
}

function outProject(element) {
	var element = $(element);
	var linkObjs = element.getElementsByTagName('A');
	if (linkObjs) {
		linkObjs[1].style.visibility = 'hidden';
	}
}

function preloadImages() {

    if (document.images)
    {
		var preload_image_object = new Image();
		// set image url
		var image_url = [
			'/images/btn_cancel.gif',
			'/images/btn_edit.gif',
			'/images/btn_ok.gif',
			'/images/btn_plus.gif',
			'/images/btn_trash.gif',
			'/images/btn_refresh.gif',
			'/images/btn_refresh2.gif'
		];

		for(var i=0; i<=image_url.length; i++) 
			preload_image_object.src = image_url[i];
    }
}