function contact()
{
document.forms['kontakt_form'].reset();
showHide('transparent');
showHide('contact_ajax');
}

//-----------------

function prikaz() 
{ 
if (http.readyState == 4) 
	{ 
	var result = http.responseText; 
	document.getElementById('tekst_tab').innerHTML=result;
	showHideSimple('progress');
	showHideSimple('tekst_tab');
	} 
}

//-----------------

function prognoza(tip) 
{
var url = "prognoza.php"; 
var tip_prognoze = encodeURIComponent(tip);
var isajax = 1;
showHideSimple('progress');
getLayerStyle('tekst_tab').display = 'block';
showHideSimple('tekst_tab');
tabbing(tip);
var duzina = tip_prognoze.length + isajax.length;
http.open("POST", url, true); 
http.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); 
http.setRequestHeader("Content-Length",duzina);
http.send("tip="+tip_prognoze+"&isajax="+isajax);

http.onreadystatechange = prikaz; 

http.send(null);
}

//-----------------

function getHTTPObject() 
{

  var xmlhttp;

  /*@cc_on
  @if (@_jscript_version >= 5)
    try {
      xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
				  try {
						xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
					  } catch (E) {
									xmlhttp = false;
								  }
    			}
  @else
  xmlhttp = false;
  @end @*/

  if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
    try {
    xmlhttp = new XMLHttpRequest();
    } catch (e) {
      xmlhttp = false;
    }
  }
  return xmlhttp;
}

var http = getHTTPObject(); 


//--------------------------------------

function tabbing(id)
	{
	aktivniTab.style.backgroundColor = "transparent";
	aktivniTab.style.color = "#999999";
	var noviTab = document.getElementById(id);
	aktivniTab = noviTab;
	aktivniTab.style.backgroundColor = "#ffffff";
	aktivniTab.style.color = "#336";
	}