// JavaScript Document
//alert("ku_ku");

function entersearch()
{
	//alert( "enter");
	var search_string = document.getElementById("str");
	var form = document.getElementById("search_form");
	if (search_string && search_string.value != "")
	{
		//form.action = "search.php?str=" + escape(search_string.value);
		form.action = "search.php?str=" + search_string.value;
		form.submit();
	}
}
var next_art_block = 2;
var prev_art_block = 1;
function next_art( )
{
	var next = document.getElementById("arts_block_" + next_art_block);
	var prev = document.getElementById("arts_block_" + prev_art_block);
	if( next && prev)
	{
		prev.style.display = "none";
		next.style.display = "block";
		next_art_block++;
		prev_art_block++;
		var next2 = document.getElementById("arts_block_" + next_art_block);
		if ( !next2)
		{
			next_art_block--;
			prev_art_block--;
		}
	}
}

function prev_art( )
{
	var next = document.getElementById("arts_block_" + next_art_block);
	var prev = document.getElementById("arts_block_" + prev_art_block);
	if( next && prev)
	{
		prev.style.display = "block";
		next.style.display = "none";
		next_art_block--;
		prev_art_block--;
		var next2 = document.getElementById("arts_block_" + prev_art_block);
		if ( !next2)
		{
			next_art_block++;
			prev_art_block++;
		}
	}
}