var imagesloaded = 0
var selected = 0
function preloadimages() {
if (parseInt(navigator.userAgent.substring(8,9)) >= 3) {
	nav = new Array(12);
	nav[1]=new Image(272, 18);
	nav[1].src = "../img/nav_about.gif";
	nav[2]=new Image(272, 18);
	nav[2].src = "../img/nav_physi.gif";
	nav[3]=new Image(272, 18);
	nav[3].src = "../img/nav_proced.gif";
	nav[4]=new Image(272, 18);
	nav[4].src = "../img/nav_produc.gif";
	nav[5]=new Image(272, 18);
	nav[5].src = "../img/nav_news.gif";
	nav[6]=new Image(272, 18);
	nav[6].src = "../img/nav_resear.gif";
	nav[7]=new Image(272, 18);
	nav[7].src = "../img/nav_direct.gif";
	nav[8]=new Image(272, 18);
	nav[8].src = "../img/nav_forms.gif";
	nav[9]=new Image(272, 18);
	nav[9].src = "../img/nav_conta.gif";
	nav[10]=new Image(272, 18);
	nav[10].src = "../img/nav_empty1.gif";
	nav[11]=new Image(272, 18);
	nav[11].src = "../img/nav-officetour.gif";
	nav[12]=new Image(272, 18);
	nav[12].src = "../img/nav_before.gif";
	
	navh = new Array(10);
	navh[1]=new Image(272, 18);
	navh[1].src = "../img/nav_about-over.gif";
	navh[2]=new Image(272, 18);
	navh[2].src = "../img/nav_physi-over.gif";
	navh[3]=new Image(272, 18);
	navh[3].src = "../img/nav_proced-over.gif";
	navh[4]=new Image(272, 18);
	navh[4].src = "../img/nav_produc-over.gif";
	navh[5]=new Image(272, 18);
	navh[5].src = "../img/nav_news-over.gif";
	navh[6]=new Image(272, 18);
	navh[6].src = "../img/nav_resear-over.gif";
	navh[7]=new Image(272, 18);
	navh[7].src = "../img/nav_direct-over.gif";
	navh[8]=new Image(272, 18);
	navh[8].src = "../img/nav_forms-over.gif";
	navh[9]=new Image(272, 18);
	navh[9].src = "../img/nav_conta-over.gif";
	navh[10]=new Image(272, 18);
	navh[10].src = "../img/nav_empty1.gif";
	navh[11]=new Image(272, 18);
	navh[11].src = "../img/nav-officetour-over.gif";	
	navh[12]=new Image(272, 18);
	navh[12].src = "../img/nav_before-over.gif";
	
	imagesloaded = 1
	}
	}
	function hilite (name, num) {
	if (imagesloaded == 1) {
	if (selected != num) {
 	document.images[name].src = navh[num].src
 	}
 	}
	}
	function lowlite (name, num) {
	if (imagesloaded == 1) {
	if (selected != num) {
 	document.images[name].src = nav[num].src
 	}
	}
	}

function killerrors(){return true;}window.onerror = killerrors;
function checkData(){for(var i=0;i<document.form_search.sw.value.length;i++){if (document.form_search.sw.value.charAt(i)!=" "){return true;}}return false;}