function external() {
  /*
 if (document.getElementsByTagName) {
  var i, a;
  a = document.getElementsByTagName('a');
  for (i in a) {
   if (a[i].getAttribute('href') && 
       a[i].getAttribute('rel') == 'external') a[i].target = '_blank';
  }
 }*/
 $("a[@rel=external]").attr("target", "_blank");
}

window.onload = external;

function showS(arg){
	var sel = document.getElementById('slovniky').getElementsByTagName('div');
	var sel = document.getElementById('slovniky').getElementsByTagName('select');
	
	for(var j=0;j<sel.length;j++){
		if(j!=arg) sel[j].selectedIndex=0;
		if(j==arg) sel[j].id="field12";
	}	
	
	for(var i=0;i<sel.length;i++){
		sel[i].style.display=(i==arg)?'block':'none';
	}
}

function img_hover(ind)
{
s = document.getElementById("objekt_" + ind)
 if (s.style.display == 'none')
 {
   s.style.display = 'block';
 }
 else if (s.style.display == 'block')
 {
   s.style.display = 'none';
 }}