// JavaScript Document
var img_big=new Image();
img_big.src="/slike/ka/body3_big.jpg";
var img_small=new Image();
img_small.src="/slike/ka/body3_small.jpg";

function getHTTPObject(){
   if (window.ActiveXObject) return new ActiveXObject("Microsoft.XMLHTTP");
   else if (window.XMLHttpRequest) return new XMLHttpRequest();
   else {
      alert("Your browser does not support AJAX.");
      return null;
   }
} 

function showItem(item_id,container,wrapper){
	var httpObj=getHTTPObject();
	var response="";
	if(httpObj != null){
        httpObj.open("GET", "ka_ajax.php?filter="+item_id, false);
        httpObj.send(null);
      	if (httpObj.readyState==4){
       		response=httpObj.responseText;
      	}
	if(wrapper.match("menu0")){
		document.getElementById("menu0_1").style.backgroundColor="";
		document.getElementById("menu0_2").style.backgroundColor="";
		document.getElementById("menu0_3").style.backgroundColor="";
		document.getElementById("menu0_4").style.backgroundColor="";
		document.getElementById(wrapper).style.backgroundColor="#111111";
	}

	document.getElementById(container).style.display="block";
	document.getElementById(container).innerHTML=response;
	}
}

function setBackground(){
	var img=document.getElementById('body_img');
	
	var width=document.body.offsetWidth;
	var height=document.body.offsetHeight;
	if (width>1400) img.src="/slike/ka/body3_big.jpg";
	else img.src="/slike/ka/body3_small.jpg";
	document.getElementById('background_div').height=height;
	img.width=width;
	
	
}

function adjustBackground(){
	var img=document.getElementById('body_img');
	var width=document.body.offsetWidth;
	var height=document.body.offsetHeight;
	
	var width=document.body.offsetWidth;
	var height=document.body.offsetHeight;
	 
	if (width>1400) img.src=img_big.src
	else img.src=img_small.src;
	document.getElementById('background_div').height=height;
	img.width=width;
	
}

function showArticle(id){
	var show=document.getElementById(""+id).style.display;
	if(show != "none"){
		document.getElementById(""+id).style.display="none";
		document.getElementById("strelica_"+id).src="/slike/ka/down.jpg";
	}
	else{
		document.getElementById(""+id).style.display="block";
		document.getElementById("strelica_"+id).src="/slike/ka/up.jpg";
	}
}

function show_first(id){
	<!--document.getElementById(""+list[1]).style.display="block";-->
	document.getElementById(""+id).style.display="block";
	document.getElementById("strelica_"+id).src="/slike/ka/up.jpg";
}