function left_menu_change(id) {

var obj = document.getElementById('Option1');
obj.style.display = "none";
obj.style.visibility = 'hidden'; 

var obj = document.getElementById('Option2');
obj.style.display = "none";
obj.style.visibility = 'hidden'; 

var obj = document.getElementById('Option3');
obj.style.display = "none";
obj.style.visibility = 'hidden'; 

var obj = document.getElementById(id);
 
if (obj.style.display == 'block') {
obj.style.display = "none";
obj.style.visibility = 'hidden'; 
}
else
{ 
obj.style.display = 'block';
obj.style.visibility = 'visible'; 
}
}


function left_menu_default(id) {
var obj = document.getElementById(id);
obj.style.display = 'block';
obj.style.visibility = 'visible'; 
}


function fire_equip_show(id) {
var obj = document.getElementById(id);
obj.style.display = 'block';
obj.style.visibility = 'visible'; 
}

function fire_equip_hide(id) {
var obj = document.getElementById(id);
obj.style.display = 'none';
obj.style.visibility = 'hidden'; 
}