//******************************************************************//
//funkce specificke pro e-shop, validacni, ruzne dialogy atd. jinde nepouzitelne
//******************************************************************//

//test emailu
function validate_email(form) {
   email = /^[-a-zA-Z0-9_.+]+@[-a-zA-Z0-9_.+]+\.[a-zA-Z0-9]+$/;
   if(!email.test(form.email.value)) {
      alert(js_text["form_bad_email"]); 
      form.email.focus(); 
      return false;
   }
   return true;
}

//test vyhledavaciho formulare	
function validate_search(form) {
   if(form.key_words.value=='' || form.key_words.value.length<2) {
      alert(js_text["search_bad_keyword"]);
      return false;
   }
   return true;
}

//zobrazeni a skryti vyhledavaciho formulare
function switch_adv_form(id) {
	var adv_form = document.getElementById(id);
	if(adv_form.style.display == "none") {
		adv_form.style.display = "block";
	}
	else {
		adv_form.style.display = "none";
	}
}

//zobrazeni a skryti napovedy u vyhledavaciho formulare
function switch_help(id) {
	var help = document.getElementById(id);
	if(help.style.display == "block") {
		help.style.display = "none";
	}
	else {
		help.style.display = "block";    	 
	}   
}

//test vstupnich dat v pokrocilem vyhledavani	
function validate_adv_search(form) {
	if(form.key_words.value=='' || form.key_words.value.length<2) {
		alert(js_text["search_bad_keyword"]);
		return false;
	}
	else if (
      form.item_name.checked == false && 
      form.short_text.checked == false && 
      form.long_text.checked == false && 
      form.code.checked == false && 
      form.redaction.checked == false && 
      form.news.checked == false )
   {
		alert(js_text["search_no_attr"]);
		return false;
	}
	return true;
}