function menu() {
	var nav = document.getElementById('nav');
	var home = nav.getElementsByTagName('li')[0];
	var services = nav.getElementsByTagName('li')[1];
	var catalog = nav.getElementsByTagName('li')[2];
	var distributors = nav.getElementsByTagName('li')[3];
	var tech = nav.getElementsByTagName('li')[4];
	home.onmouseover = function () {
		nav.className = 'home2';
	}
	home.onmouseout = function () {
		nav.className = '';
	}
	services.onmouseover = function () {
		nav.className = 'ser2';
	}
	services.onmouseout = function () {
		nav.className = '';
	}
	catalog.onmouseover = function () {
		nav.className = 'cat2';
	}
	catalog.onmouseout = function () {
		nav.className = '';
	}
	distributors.onmouseover = function () {
		nav.className = 'dis2';
	}
	distributors.onmouseout = function () {
		nav.className = '';
	}
	tech.onmouseover = function () {
		nav.className = 'tech2';
	}
	tech.onmouseout = function () {
		nav.className = '';
	}
}