var cache_image = new Image(); 
var full_txt = new Array(); 
var counter = 0 ; 

function swap_txt(num) {
    var main = $('main_article').innerHTML = full_txt[num]; 
}


function nxt() {

	var	liArray = document.getElementById('more_ul').getElementsByTagName('li');
	for (i=0;i<liArray.length;i++) {
		liArray[i].className="";
	}
    counter++; 
    $('art_count').innerHTML = counter + 1 ; 

    $('prev_id').style.visibility = 'visible';
    if (counter + 1 == max  ) { 
        $('next_id').style.visibility = 'hidden';

    } else { 
        $('next_id').style.visibillity = 'visible';
    }
    if ( counter == max ) { 
      counter = 0 ; 
    }
    liArray[counter].className="active";
        swap_txt(counter);
}

function prv() { 

	var	liArray = document.getElementById('more_ul').getElementsByTagName('li');
	for (i=0;i<liArray.length;i++) {
		liArray[i].className="";
	}
    counter--; 
    $('art_count').innerHTML = counter +1  ; 

    if ( $('next_id').style.visibility == 'hidden' ) { 
        $('next_id').style.visibility = 'visible';
    }

    if (counter == -1 ) { 
        $('prev_id').style.visibility = 'hidden';
        counter = max -1 ; 
    } 
    liArray[counter].className="active"; 
    swap_txt(counter);
}