/*
 * scroll elements for jQuery - http://www.ramengo,com 
 * Copyright (c) 2007 Andrea  Brugnolo 
 * GPL (GPL-LICENSE.txt) licenses.
 */ 


var movedownvar = objheight = moveupvar = 0;
var speed = 4;

$(document).ready(function()
{
    // Rileva la dimensione massima del box
    objheight = $(".scroll_testo").height();
    // Faccio scomparire il navigatore
    if(objheight < parseInt($(".scroll_container").height()))
    {
        $("a.down").hide();  $("a.up").hide();
    }
    $("a.down").hover(function(){       // Caso Over Down
        movedown()
    },function(){
        clearTimeout(movedownvar);
    });

    $("a.up").hover(function(){        // Caso Over Up
        moveup()
    },function(){
        clearTimeout(moveupvar);
    });

});

function movedown()
{
    s_pos = parseInt($(".scroll_testo").css("top"));

    if (s_pos >=(objheight*(-1)+100))
        $(".scroll_testo").css('top', s_pos -= speed);

    movedownvar=setTimeout("movedown()",50);
}

function moveup()      
{
    s_pos = parseInt($(".scroll_testo").css("top"));

    if (s_pos<=0)
        $(".scroll_testo").css('top', s_pos += speed);

    moveupvar=setTimeout("moveup()",50);
}