function make_http_request() {
        var http_request = false;
        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
                // See note below about this line
            }
        } else if (window.ActiveXObject) { // IE
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }
        if (!http_request) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
        return http_request;
}
function Vote() {
	
	
	  if(document.getElementById('vote').value==''){
	
	
        url = 'vote.php';
        len = document.fanketa.anketa_id.length;
        for (i = 0; i <len; i++) {
        if (document.fanketa.anketa_id[i].checked) {
            chosen = document.fanketa.anketa_id[i].value
        }
      }
        
        var http_request=make_http_request();
        
        document.getElementById('anketa').innerHTML='<div style="width: 210px;height: 87px;text-align: center;padding-top: 60px;"><img src="images/ajax-loader.gif"></div>';

        http_request.onreadystatechange = function() { 
        	 if (http_request.readyState == 4) {
            if (http_request.status == 200) {
            	
            	alert('Hvala sto ste ucestvovali u anketi');
              document.getElementById('anketa').innerHTML=http_request.responseText;
            } else {
                alert('There was a problem with the request.');
            }
        }	
      };
        http_request.open('POST', url, true);
        http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');    
        http_request.send('anketa_id='+chosen);
        
    }else{
    	alert('Vec ste ucestvovali u anketi');
    }	    
}


function Utisak() {
	
	
	  if(document.getElementById('komentar').value!='' && document.getElementById('komentar').value!='Vas komentar...'){
	
	
       url = 'utisak.php';
       
       komentar = document.getElementById('komentar').value;
       
        var http_request=make_http_request();
       
        document.getElementById('knjiga').innerHTML='<div style="width: 231px;height: 87px;text-align: center;padding-top: 60px;"><img src="images/ajax-loader.gif"></div>';

        http_request.onreadystatechange = function() { 
        	 if (http_request.readyState == 4) {
            if (http_request.status == 200) {
            	
            	alert('Vas komentar ce biti objavljen nakon odobrenja administratora');
              document.getElementById('knjiga').innerHTML=http_request.responseText;
            } else {
                alert('There was a problem with the request.');
            }
        }	
      };
        http_request.open('POST', url, true);
        http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');    
        http_request.send('komentar='+komentar);
        
    }else{
    	alert('Niste uneli komentar');
    }	    
}


function EqualizeDivs() {
var container_height=document.getElementById('container_index_center_2');
document.getElementById('container_index_left_2').style.height=container_height.offsetHeight + 'px';
document.getElementById('container_index_right_2').style.height=container_height.offsetHeight + 'px';
document.getElementById('container_index_left_2_bottom').style.height=container_height.offsetHeight + 'px';
document.getElementById('container_index_right_2_bottom').style.height=container_height.offsetHeight + 'px';

}

window.onload = EqualizeDivs;

function getBrowserHeight() {
                var intH = 0;
                var intW = 0;
               
                if(typeof window.innerWidth  == 'number' ) {
                   intH = window.innerHeight;
                   intW = window.innerWidth;
                } 
                else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
                    intH = document.documentElement.clientHeight;
                    intW = document.documentElement.clientWidth;
                }
                else if(document.body && (document.body.clientWidth || document.body.clientHeight)) {
                    intH = document.body.clientHeight;
                    intW = document.body.clientWidth;
                }

                return { width: parseInt(intW), height: parseInt(intH) };
}

function setBigImagePosition() {
                var shadow = document.getElementById("shadow");
                var big_image = document.getElementById("big_image");

                var bws = getBrowserHeight();
                shadow.style.width = bws.width + "px";
                shadow.style.height = bws.height + "px";
                shadow.style.height =document.getElementById("container").offsetHeight + 30 + "px";


                big_image.style.left = parseInt((bws.width - big_image.offsetWidth) / 2)+ "px";
                big_image.style.top = parseInt((bws.height - big_image.offsetHeight) / 2)+ "px";

                shadow = null;
                big_image = null;
}
function showBigImage(pos,image_id) {
               
              
               
                var shadow = document.getElementById("shadow");
                var big_image = document.getElementById("big_image");
                
               if(pos=='left')document.getElementById('registerContent').innerHTML='<img src="view_left_image_big.php?left_content_id='+image_id+'">';
               if(pos=='onama')document.getElementById('registerContent').innerHTML='<img src="view_onama_image_big.php?onama_id='+image_id+'">';
                if(pos=='news')document.getElementById('registerContent').innerHTML='<img src="view_news_image_big.php?news_id='+image_id+'">';
                if(pos=='cars')document.getElementById('registerContent').innerHTML='<img src="view_cars_image_big.php?car_id='+image_id+'">';
               
                shadow.style.display = "block"; 
                big_image.style.display = "block";
                
                setBigImagePosition();
                scrollTo(0,0);
                
                shadow = null;
                big_image = null;             
}   
function hideBigImage() {
                var shadow = document.getElementById("shadow");
                var big_image = document.getElementById("big_image");
                  
                document.getElementById('registerContent').innerHTML='<div style="text-align: center;height: 200px;padding-top: 100px;"><img src="images/loader.gif"></div>';  
                
                shadow.style.display = "none"; 
                big_image.style.display = "none";

                shadow = null;
                big_image = null; 

}
//window.onresize = setBigImagePosition;    



function check_contact(){
	
if(document.getElementById('email').value!=''){	
var email_address = document.getElementById('email').value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!(filter.test(email_address))){
		alert("Niste uneli ispravnu email adresu");
  }
}	
if(document.getElementById('email').value==''){
alert("Niste uneli email");
document.getElementById('email').focus();

}else if(document.getElementById('ime').value==''){
alert("Niste uneli ime");
document.getElementById('ime').focus();

}else if(document.getElementById('komentar1').value==''){
alert("Niste uneli naslov komentar");
document.getElementById('komentar1').focus();

}else{
		   url = 'send_email.php';
       
       komentar = document.getElementById('komentar1').value;
       ime = document.getElementById('ime').value;
       email = document.getElementById('email').value;
       
        var http_request=make_http_request();
       
        document.getElementById('conatct_updater').innerHTML='<img src="images/ajax-loader-2.gif">';

        http_request.onreadystatechange = function() { 
        	 if (http_request.readyState == 4) {
            if (http_request.status == 200) {
            	alert('Hvala. Uskoro cemo vas kontaktirati.');
              document.getElementById('conatct_updater').innerHTML='';
            } else {
                alert('There was a problem with the request.');
            }
        }	
      };
        http_request.open('POST', url, true);
        http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');    
        http_request.send('komentar='+komentar+'&ime='+ime+'&email='+email);
 }
}