function copyAdr(prefix, formName)
{
	var elems = ['_ulice', '_popisne', '_orientacni', '_mesto', '_psc'];
	var prefixes = ['s', 'k', 'r'];
	
	for(i = 0; i < prefixes.length; i++) {
		for(j = 0; j < elems.length; j++) {
			if(prefix != prefixes[i]) {
				var a = prefixes[i]+elems[j];
				var b = prefix+elems[j];
				document.forms[formName].elements[a].value = document.forms[formName].elements[b].value;
			}
		}
	}
}

function colorDiv(id, color)
{
	element = document.getElementById(id); 
	event.cancelBubble = true;
	oldcolor = element.currentStyle.background; 
	element.style.background = color;
}

function changeDisplay(el) {
  var element = document.getElementById(el);
      
  if(element.style.display == "none") {
    element.style.display = "inline";
  } else {
    element.style.display = "none";
  }
}