function ajaxRequest(){
 		var activexmodes=["Msxml2.XMLHTTP", "Microsoft.XMLHTTP"]; //activeX versions to check for in IE
 		if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
  			for (var i=0; i<activexmodes.length; i++){
   				try{
    				return new ActiveXObject(activexmodes[i]);
   				}
   				catch(e){
    				alert("Vaš browser ne podržava AJAX.");
   				}
  			}
 		}
 		else if (window.XMLHttpRequest) // if Mozilla, Safari etc
  			return new XMLHttpRequest();
 		else
  			return false;
	}
	function explode( delimiter, string, limit ) {
    	var emptyArray = { 0: '' };
    	if ( arguments.length < 2 || typeof arguments[0] == 'undefined' || typeof arguments[1] == 'undefined' ) {
    	    return null;
    	}
 
    	if ( delimiter === '' || delimiter === false || delimiter === null ) {
    	    return false;
    	}
 	
 	   if ( typeof delimiter == 'function' || typeof delimiter == 'object' || typeof string == 'function' || typeof string == 'object' ) {
 	       return emptyArray;
 	   }
 	
 	   if ( delimiter === true ) {
 	       delimiter = '1';
 	   }
 	   
 	   if (!limit) {
 	       return string.toString().split(delimiter.toString());
 	   }
 	   else {
 	       var splitted = string.toString().split(delimiter.toString());
 	       var partA = splitted.splice(0, limit - 1);
 	       var partB = splitted.join(delimiter.toString());
 	       partA.push(partB);
 	       return partA;
 	   }
	}
	
	function AttachOnClick(id) {
		var tabla = document.getElementById('tabla-slicice'+id);
		var images = tabla.getElementsByTagName('img');
		for (i=0;i<images.length;i++) {
			images[i].onmouseover = function() {
				this.style.opacity = "1";
				this.style.filter = "alpha(opacity=100)";
				this.style.cursor = "pointer";
			};
			images[i].onmouseout = function() {
				this.style.opacity = "0.5";
				this.style.filter = "alpha(opacity=50)";
			}
			images[i].onclick = function() {
				var source = this.src;
				var caption = this.alt;
				document.getElementById('caption').innerHTML = caption;
				source = source.replace(/50x50/, "300x300");
				document.getElementById('oglas-slike'+id).style.backgroundImage = 'url('+source+')';// 47px 74px no-repeat';
			}
		}
	}
	
	function GetCity(zip,where) {
		if (zip != '') {
			var mypostrequest=new ajaxRequest();
			mypostrequest.onreadystatechange=function(){
				if (mypostrequest.readyState==4){
 					if (mypostrequest.status==200 || window.location.href.indexOf("http")==-1){
	 					document.getElementById(where).value = mypostrequest.responseText;
  					}
  					else{
   						alert("Greška prilikom obrade zahteva.");
  					}
 				}
			}
			var parameters="load=true&zip="+zip;
			mypostrequest.open("POST", "scripts/zip.php", true);
			mypostrequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
			mypostrequest.send(parameters);
		}
		else {
			return;
		}
	}
	
	function base64_encode(data) {	        
	    var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
	    var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, enc="", tmp_arr = [];
	 
	    if (!data) {
	        return data;
	    }
	    
	    do {
	        o1 = data.charCodeAt(i++);
	        o2 = data.charCodeAt(i++);
	        o3 = data.charCodeAt(i++);
	 
	        bits = o1<<16 | o2<<8 | o3;
	 
	        h1 = bits>>18 & 0x3f;
	        h2 = bits>>12 & 0x3f;
	        h3 = bits>>6 & 0x3f;
	        h4 = bits & 0x3f;
	 
	        tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4);
	    } while (i < data.length);
	    
	    enc = tmp_arr.join('');
	    
	    switch (data.length % 3) {
	        case 1:
	            enc = enc.slice(0, -2) + '==';
	        break;
	        case 2:
	            enc = enc.slice(0, -1) + '=';
	        break;
	    }
 
	    return enc;
	}