// DEFINO VARIABLES A UTILIZAR
if (parseInt(navigator.appVersion)>3) {
 if (navigator.appName=="Netscape") {
  winW = window.innerWidth;
  winH = window.innerHeight;
 }
 if (navigator.appName.indexOf("Microsoft")!=-1) {
  winW = document.body.offsetWidth;
  winH = document.body.offsetHeight;
 }
}

var target_x = (winW / 2) - 125;
var target_y = 300;
var has_inner = typeof(window.innerWidth) == 'number';
var has_element = document.documentElement && document.documentElement.clientWidth;
var fm_id='floatdiv';
var floating_menu = document.getElementById ? document.getElementById(fm_id) : document.all ? document.all[fm_id] : document.layers[fm_id];
var fm_shift_x, fm_shift_y, fm_next_x, fm_next_y;
///
function move_menu(){
    if (document.layers){
        floating_menu.left = fm_next_x;
        floating_menu.top = fm_next_y;
    } else {
        floating_menu.style.left = fm_next_x + 'px';
        floating_menu.style.top = fm_next_y + 'px';
    }
}
///
function compute_shifts(){
    fm_shift_x = has_inner ? pageXOffset : has_element ? document.documentElement.scrollLeft : document.body.scrollLeft;
	///
    if (target_x < 0){
        fm_shift_x += has_inner ? window.innerWidth : has_element ? document.documentElement.clientWidth : document.body.clientWidth;
	}
	///
    fm_shift_y = has_inner ? pageYOffset : has_element ? document.documentElement.scrollTop : document.body.scrollTop;
	///
    if (target_y < 0){
		fm_shift_y += has_inner ? window.innerHeight : has_element ? document.documentElement.clientHeight : document.body.clientHeight;
	}
}
///
function float_menu(){
    var step_x, step_y;
	///
    compute_shifts();
	///
    step_x = (fm_shift_x + target_x - fm_next_x) * .07;
	///
    if (Math.abs(step_x) < .5){
        step_x = fm_shift_x + target_x - fm_next_x;
	}
	///
    step_y = (fm_shift_y + target_y - fm_next_y) * .07;
	///
    if (Math.abs(step_y) < .5){
        step_y = fm_shift_y + target_y - fm_next_y;
	}
	///
    if (Math.abs(step_x) > 0 || Math.abs(step_y) > 0){
        fm_next_x += step_x;
        fm_next_y += step_y;
        move_menu();
    }
	///
    setTimeout('float_menu()', 20);
};
///
compute_shifts();
///
if (document.layers){
    // Netscape 4 cannot perform init move
    // when the page loads.
    fm_next_x = 0;
    fm_next_y = 0;
} else {
    fm_next_x = fm_shift_x + target_x;
    fm_next_y = fm_shift_y + target_y;
    move_menu();
}
///
document.getElementById('floatdiv').style.display = 'none';
///
float_menu();