function showall_pr() {
document.getElementById("more_pr").style.display = "none";
document.getElementById("bproektors").style.height = "0px";
document.getElementById("bproektors").style.height = "100%";
}

function showall_ec() {
document.getElementById("more_ec").style.display = "none";
document.getElementById("bekrani").style.height = "0px";
document.getElementById("bekrani").style.height = "100%";
}

function showall_kr() {
document.getElementById("more_kr").style.display = "none";
document.getElementById("bkreplenia").style.height = "0px";
document.getElementById("bkreplenia").style.height = "100%";
}

function showall_do() {
document.getElementById("more_do").style.display = "none";
document.getElementById("bintdesk").style.height = "0px";
document.getElementById("bintdesk").style.height = "100%";
}

function showall_ka() {
document.getElementById("more_ka").style.display = "none";
document.getElementById("bkabels").style.height = "0px";
document.getElementById("bkabels").style.height = "100%";
}

function showall_la() {
document.getElementById("more_la").style.display = "none";
document.getElementById("blamps").style.height = "0px";
document.getElementById("blamps").style.height = "100%";
}

function showall_ac() {
document.getElementById("more_ac").style.display = "none";
document.getElementById("bacsesuars").style.height = "0px";
document.getElementById("bacsesuars").style.height = "100%";
}

function showall_go() {
document.getElementById("more_go").style.display = "none";
document.getElementById("bgotov").style.height = "0px";
document.getElementById("bgotov").style.height = "100%";
}