var but = new Array (9)
 var alt = new Array (9)

 var but2 = new Array (6)
 var alt2 = new Array (6)
 var ver;

 if (document.images)
 {
		but[1] = new Image();
		alt[1] = new Image();
		but[1].src = 'images/but1a.gif';
		alt[1].src = 'images/but1.gif';

  	for (i=1 ; i <6 ; i++ ){
		but2[i] = new Image();
		alt2[i] = new Image();
		but2[i].src = 'images/k' + i + '.gif';
		alt2[i].src = 'images/k' + i + 'a.gif';
	}
 }
function release(num)
{
   if (document.images)
   {
   	if (selected_menu!=num){
	 	var but_obj = eval("document.button" + num);
		but_obj.src = but[1].src;
	}
   }
   return true;
}
function release2(num)
{
   if (document.images)
   {
	 	var but_obj = eval("document.butt" + num);
		but_obj.src = but2[num].src;
   }
   return true;
}

function press(num)
{
    if (document.images)
    {

   	if (selected_menu!=num){
	 	var but_obj = eval("document.button" + num);
		but_obj.src = alt[1].src;

	}
    }
	return true;
}
function press2(num)
{
    if (document.images)
    {
	 	var but_obj = eval("document.butt" + num);
		but_obj.src = alt2[num].src;

    }
	return true;
}
var nw1;
function ow(url){
	nw1 = window.open(url, "tab", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,width=600,height=500");
	nw1.focus();
}

function Click(num)
{
     {

	open ("top" + num + ".shtml","top");
	open ("lmenu" + num + ".shtml","lmen");
        open ("text" + num + ".shtml","dispw");
        open ("rmenu" + num + ".shtml","rmen");

    }
}
function Click2(num)
{
    {


        open ("textm" + num + ".shtml","dispw");
        open ("rmenu2" + num + ".shtml","rmen");

    }
}
function banner()
{
var rnd=Math.floor(100*Math.random());
if (rnd>=0 && rnd<50) document.write('<a href="http://www.aerocosmos.ru/"><img src="images/ban1.gif" width=468 height=60  border=0></a><br><img src="images/trp.gif" width="1" height="10" border=0>');
if (rnd>=50 && rnd<100) document.write('<a href="http://www.aerocosmos.ru/"><img src="images/ban2.gif" width=468 height=60  border=0></a><br><img src="images/trp.gif" width="1" height="10" border=0>');
}
function visible(){

	if(parseInt(navigator.appVersion) > 3){
	    	if(navigator.appName == "Netscape"){

	 			var but_obj = eval("document.button" + num);
				but_obj.src = alt[1].src;




//	    		document.menu.visibility = 'visible';
//	    		document.menu1.visibility = 'visible';
	    		}
     		else{
//     			document.all.menu.style.visibility='visible';
     			document.all.menu1.style.visibility='visible';
     		};
	}
}

function hidden(){
	if(parseInt(navigator.appVersion) > 3){
	    	if(navigator.appName == "Netscape"){

		 		var but_obj = eval("document.button" + num);
				but_obj.src = but[1].src;


//	    		document.menu.visibility = 'hidden'
//	    		document.menu1.visibility = 'hidden'
	    	}
     		else{
//     			document.all.menu.style.visibility='hidden';
     			document.all.menu1.style.visibility='hidden';
     		}
	}

}