function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-1);i+=7)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+5];}
}

var id_time;
	var menus=new Array();
		menus[0]="tech";
		menus[1]="equip";
		menus[2]="contact";
		menus[3]="news";
		
function get_name(id) {
		return eval((document.all) ? 'document.all["'+id+'"].style' : 'document["'+id+'"]');
}

function hide(e) {
	if(e) {
		layer=get_name(e);
		layer.visibility="hidden";}
	}

function hide_all_menu() {
	for(i=0;i<menus.length;i++) {
			hide(menus[i]);
		}
	}
	
function show_menu(cx, cy, name) {
	hide_all_menu();
	clearTimeout(id_time);
	var b=get_name(name);
	b.visibility='visible';
	b.top=cy;
	b.left=cx;
}