// JavaScript Document


function setZIndex(id, z_index) {
	document.getElementById(id).style.zIndex = z_index;

}


function show(id) {
	document.getElementById(id).style.visibility="visible";
}

function hide(id) {
	
	document.getElementById(id).style.visibility="hidden";
}

function menu_on(id){

    document.getElementById(id).src=String(document.getElementById(id).src).replace("_off", "_on");
}

function menu_off(id){

    document.getElementById(id).src=String(document.getElementById(id).src).replace("_on", "_off");
}

function bPress(menu){
    //alert(menu);
    document.getElementById("m0").style.visibility="hidden";
    document.getElementById("m1").style.visibility="hidden";
    document.getElementById("m"+menu).style.visibility="visible";
}