function ukazs(idecko){
   el=document.getElementById(idecko).style;
   el.display=(el.display == 'block')?'none':'block';
} 

function ukaz(item)
{
	document.getElementById('r_1').style.display = "none";
	document.getElementById('r_2').style.display = "none";
	document.getElementById('r_3').style.display = "none";
	document.getElementById('r_4').style.display = "none";
	document.getElementById(item).style.display = "block";
}

function ukaz_hl(item)
{
	document.getElementById('hl1').style.display = "none";
	document.getElementById('hl2').style.display = "none";
	document.getElementById(item).style.display = "block";
}

function ukaz_n(item)
{
	document.getElementById('n_1').style.display = "none";
	document.getElementById('n_2').style.display = "none";
	document.getElementById('n_3').style.display = "none";
	document.getElementById(item).style.display = "block";
}

function ukazto(idecko){
   el=document.getElementById(idecko).style;
   el.display=(el.display == 'block')?'none':'block';
}
   

   function hideDiv() { 
if (document.getElementById) { // DOM3 = IE5, NS6 
document.getElementById('hideshow').style.visibility = 'hidden'; 
} 
else { 
if (document.layers) { // Netscape 4 
document.hideshow.visibility = 'hidden'; 
} 
else { // IE 4 
document.all.hideshow.style.visibility = 'hidden'; 
} 
} 
}

function showDiv() { 
if (document.getElementById) { // DOM3 = IE5, NS6 
document.getElementById('hideshow').style.visibility = 'visible'; 
} 
else { 
if (document.layers) { // Netscape 4 
document.hideshow.visibility = 'visible'; 
} 
else { // IE 4 
document.all.hideshow.style.visibility = 'visible'; 
} 
} 
} 

var selectmenu=document.getElementById("myteam")
selectmenu.onchange=function(){ //run some code when "onchange" event fires
 var chosenoption=this.options[this.selectedIndex] //this refers to "selectmenu"
 if (chosenoption.value!="nothing"){
  window.open(chosenoption.value, "", "") //open target site (based on option's value attr) in new window
 }
}