function menu_options(x){
	document.getElementById('hardware').style.display = "none";
	document.getElementById('software').style.display = "none";
	document.getElementById('labels').style.display = "none";
	document.getElementById('ribbons').style.display = "none";
	document.getElementById('information').style.display = "none";
	document.getElementById('downloads').style.display = "none";

	if (x != "none"){
		document.getElementById(x).style.display = "block";
	}
}

function left_menu_options(x){

	if (x != "none"){
		document.getElementById('lfree').style.display = "none";
		document.getElementById('lhardware').style.display = "none";
		document.getElementById('lhardware_vendor').style.display = "none";
		document.getElementById('lsoftware').style.display = "none";
		document.getElementById('lsoftwareb').style.display = "none";
		document.getElementById('llabels').style.display = "none";
		document.getElementById('lribbons').style.display = "none";
		document.getElementById('linformation').style.display = "none";
		document.getElementById('ldownloads').style.display = "none";
		document.getElementById('lrebates').style.display = "none";
		document.getElementById('lrepair').style.display = "none";
		document.getElementById('lwarranty').style.display = "none";
		document.getElementById('lclear').style.display = "none";
		document.getElementById('lzebraid').style.display = "none";
		document.getElementById(x).style.display = "block";

		document.getElementById(x+"_opt_open").style.display = "none";
		document.getElementById(x+"_opt_close").style.display = "block";
	}
}


function left_menu_close(x){

	if (x != "none"){
		document.getElementById(x).style.display = "none";
		document.getElementById(x+"_opt_open").style.display = "block";
		document.getElementById(x+"_opt_close").style.display = "none";
	}
}