// JavaScript Document
function activateTab(tab) {
    document.getElementById('tab_photo').style.display = 'none';
    document.getElementById('tab_video').style.display = 'none';
    document.getElementById('tab_doc').style.display = 'none';
    document.getElementById('tab_link').style.display = 'none';
	
    document.getElementById(tab).style.display = 'block';
}

function switchBnrRow(on_bnr, off_bnr, stop_control, bnr_cnt) {
    if (stop_control == 0) {
        if (on_bnr > bnr_cnt) {
            on_bnr = 1;
        }
		
        if (on_bnr != off_bnr) {
            document.getElementById('body_banner_item_' + on_bnr).style.display = 'block';
            document.getElementById('body_banner_item_' + off_bnr).style.display = 'none';
        //            document.getElementById('bnr_toolbar_button_' + on_bnr).className = 'body_banner_toolbar_button_on';
        //            document.getElementById('bnr_toolbar_button_' + off_bnr).className = 'body_banner_toolbar_button';
        }
		
        return on_bnr;
    } else {
        return off_bnr;
    }
}

function switchAdvRow(on_adv, off_adv, adv_cnt) {
    if (on_adv > adv_cnt) {
        on_adv = 1;
    }
	
    if (on_adv != off_adv) {
        document.getElementById('body_adv_item_' + on_adv).style.display = 'block';
        document.getElementById('body_adv_item_' + off_adv).style.display = 'none';
    }
	
    return on_adv;
}

////////////////////// AJAX
 
var HttPRequest = false;
 
function loadNews(Mode,Page, BASE_URL) {
 
    HttPRequest = false;
    if (window.XMLHttpRequest) { // Mozilla, Safari,...
        HttPRequest = new XMLHttpRequest();
        if (HttPRequest.overrideMimeType) {
            HttPRequest.overrideMimeType('text/html');
        }
    } else if (window.ActiveXObject) { // IE
        try {
            HttPRequest = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                HttPRequest = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    } 
 
    if (!HttPRequest) {
        alert('Cannot create XMLHTTP instance');
        return false;
    }
 
    var url = BASE_URL + 'xml.php';
    var pmeters = 'mode='+Mode+'&Page='+Page;
    HttPRequest.open('POST',url,true);
 
    HttPRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    HttPRequest.setRequestHeader("Content-length", pmeters.length);
    HttPRequest.setRequestHeader("Connection", "close");
    HttPRequest.send(pmeters);
 
 
    HttPRequest.onreadystatechange = function()
    {
 
        if(HttPRequest.readyState == 3)  // Loading Request
        {
            document.getElementById("listingAJAX").innerHTML = '<img src="images/loader.gif" align="center" />';
        }
 
        if(HttPRequest.readyState == 4) // Return Request
        {
            var response = HttPRequest.responseText;
 
 
            document.getElementById("listingAJAX").innerHTML = response;
        }
 
    }
 
 
}