var tick;
function stop() {
   clearTimeout(tick);
}
function simpleClock() {
   var ut=new Date();
   var h,m,s;
   var time="        ";
   h=ut.getHours();
   m=ut.getMinutes();
   s=ut.getSeconds();
   if(s<=9) s="0"+s;
   if(m<=9) m="0"+m;
   if(h<=9) h="0"+h;
   time+=h+":"+m+":"+s;
   document.getElementById('clock').innerHTML=time;
   tick=setTimeout("simpleClock()",1000);    
}
   
function get_date(){
	 var d_names = new Array("nedelja", "ponedeljek", "torek", "sreda", "&#269;etrtek", "petek", "sobota");
            var m_names = new Array("JAN", "FEB", "MAR", "APR", "MAJ", "JUN", "JUL", "AVG", "SEP", "OKT", "NOV", "DEC");					
            var d = new Date();
            var curr_day = d.getDay();
            var curr_date = d.getDate();
            var curr_month = d.getMonth();
            var curr_year = d.getFullYear();		
            document.write(d_names[curr_day] + ", " + curr_date + "-" + m_names[curr_month] + "-" + curr_year);
}

function switchLabel(element, color, focus) {
	if (focus) {
		if (element.value == element.defaultValue) {
			element.value="";			
			element.style.color = color;

		}
	} else {
		if (element.value == "")  {
			element.style.color = color;
			element.value = element.defaultValue;

		}
	}
}

function isEmpty(elem) {
	return (elem.value == '');
}

function isEmail(email) {
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(email)) return true;
	else {
		return false;
	}
}

function checkForm(f) {
	var error = '';
	
	with(f) {
		if(isEmpty(imeinpriimek)) {
			error += "Niste vnesli imena in priimka!\n";
		}
		
		if(isEmpty(telefon)) {
			error += "Niste vnesli telefona!\n";
		}

		if(isEmpty(email)) {
			error += "Niste vnesli email naslova!\n";
		}
		else {
			if(!isEmail(email.value)) {
				error += "Niste pravilno vpisali email naslova!\n";
			}
		}
		
		if(isEmpty(povprasevanje)) {
			error += "Niste vnesli besedila povprasevanja!";
		}
		
	}
	
	if(error != '') {
		alert(error);
		return false;
	}
	
	return true;
}