function emailval() {	
  
if (document.formaobavijest.email.value=="@") {
	alert('Upišite Vašu E-mail adresu.')
	document.formaobavijest.email.focus();
	return false;
}
if (document.formaobavijest.email.value !=''){
	mail=document.formaobavijest.email.value.toString();
	if (mail.indexOf('@') == -1 || mail.indexOf('.') == -1 ||  mail.length < 5){
		alert('Kriva E-mail adresa.')
		document.formaobavijest.email.focus();
		return false ;}
		}

else
	return true;
	}


function ShowHide(id) {
    obj = document.getElementsByTagName("div");
    if (obj[id].style.display == 'block'){
    obj[id].style.display = 'none';
    }
    else {
    obj[id].style.display = 'block';
    }
}

function ToggleElement(element, dur)
{
    new Effect.toggle(element,'Blind', {duration:dur});
}