var current_cat = '';

function selectCategoryButton(id){
/*	if(current_cat != ''){
		var btn = document.getElementById('cat_btn_'+current_cat);
		var btn_block = document.getElementById('cat_btn_'+current_cat+'_block');
		btn.className = '';
		btn_block.className = '';
	}
*/
	$("#mainNav li.active a").removeClass('active');
	$("#mainNav li.active").removeClass('active');
	var btn = document.getElementById('cat_btn_'+id);
	var btn_block = document.getElementById('cat_btn_'+id+'_block');
	btn.className = 'active';
	btn_block.className = 'active';
	
	$("#mainNav li.active").corner("10px"); 
	current_cat = id;
}

function loadTemplates(category, page, count, sort_by){
	var URL = 'http://prosto.by/cat.html';
	var query = 'cat_id='+ category +'&page_id='+ page +'&count='+ count +'&sort_by='+sort_by;
	ajax_request(URL, query, updateTemplates);
	selectCategoryButton(category);
}

function updateTemplates(HTML){
	document.getElementById('cat').innerHTML = HTML;
	if(selected_templates.length > 0){
		document.getElementById('choiseTopPad').innerHTML = GetChoiceBlockContent();
		ShowChoiceBlock();
	}
}

function loadQA(page){
	var URL = 'http://prosto.by/quesion-answer/';
	var query = 'act=show_page&page_id='+ page;
	ajax_request(URL, query, updateQA);
}

function updateQA(HTML){
	document.getElementById('contentiii').innerHTML = HTML;
}

function loadArticles(page){
	var URL = 'http://prosto.by/project/';
	var query = 'act=show_page&page_id='+ page;
	ajax_request(URL, query, updateArticles);
}

function updateArticles(HTML){
	document.getElementById('contentiii').innerHTML = HTML;
}