var highlightcolor="#ffffcc"
var ns6=document.getElementById&&!document.all
var previous=''
var eventobj
var intended=/INPUT|TEXTAREA|SELECT|OPTION/
function checkel(which){
if (which.style&&intended.test(which.tagName)){
if (ns6&&eventobj.nodeType==3)
eventobj=eventobj.parentNode.parentNode
return true
}
else
return false
}

function highlight(e){
eventobj=ns6? e.target : event.srcElement
if (previous!=''){
if (checkel(previous))
previous.style.backgroundColor='#F8EED6'
previous=eventobj
if (checkel(eventobj))
eventobj.style.backgroundColor=highlightcolor
}
else{
if (checkel(eventobj))
eventobj.style.backgroundColor=highlightcolor
previous=eventobj
}
}

function formCheck(formobj){
var fieldRequired = Array("Jméno", "Ulice", "Město", "PSČ", "Stát", "Telefon", "Příjezd", "Odjezd", "Dospělí", "Děti");
var fieldDescription = Array("Jméno a příjmení", "Ulice a číslo", "Město", "PSČ", "Stát", "Telefon (mobil)", "Datum příjezdu", "Datum odjezdu", "Počet dospělých", "Počet dětí do 12-ti let");
var alertMsg = "Prosím vyplňte následující pole:\n";
var l_Msg = alertMsg.length;
for (var i = 0; i < fieldRequired.length; i++){
var obj = formobj.elements[fieldRequired[i]];
if (obj){
switch(obj.type){
case "select-one":
if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == ""){
alertMsg += " - " + fieldDescription[i] + "\n";
}
break;
case "select-multiple":
if (obj.selectedIndex == -1){
alertMsg += " - " + fieldDescription[i] + "\n";
}
break;
case "text":
case "textarea":
if (obj.value == "" || obj.value == "+420 " || obj.value == null){
alertMsg += " - " + fieldDescription[i] + "\n";
}
break;
default:
if (obj.value == "" || obj.value == "+420 " || obj.value == null){
alertMsg += " - " + fieldDescription[i] + "\n";
}
}
}
}
if (alertMsg.length == l_Msg){
return true;
}else{
alert(alertMsg);
return false;
}
}