function check_form_addebook (the_form){
		if (the_form.ebook_parentid.value == 0){
			window.alert('Chưa chọn danh mục sách !');
			the_form.ebook_parentid.focus();
			return false;
		}
		if (the_form.ebook_name.value == ""){
			window.alert('Chưa cung cấp tựa đề sách !');
			the_form.ebook_name.focus();
			return false;
		}
		return true;
	}
		
	function Show_Member_ID(domain,username) {
		u_name	= username;
		location.href=("#");
		//location.href=(domain+"/members/view/member/"+u_name+".html");
	}
	function check_shoutbox() {
		
  		setTimeout("document.fShout.sendShoutbox.disabled=false", 5000);
  		
		if (document.fShout.sb_text.value == ""){
			window.alert('Chưa nhập nội dung !!!');
			document.fShout.sb_text.focus();
			return false;
		}
		if (document.fShout.sb_text.value.length > 250){
			window.alert('Cho phép 250 ký tự !!!');
			document.fShout.sb_text.focus();
			return false;
		}
		document.fShout.submit();
  		setTimeout("document.fShout.sb_text.value=''", 1000);
		//return true;
	}
	function limitText(limitField, limitCount, limitNum) {
		if (limitField.value.length > limitNum) {
			limitField.value = limitField.value.substring(0, limitNum);
		} else {
			limitCount.value = limitNum - limitField.value.length;
		}
	}
	function checkall(){
		for (var i = 0; i < document.ACTIVE.elements.length; i++) {
			if ( document.ACTIVE.all.checked==true ){
				document.ACTIVE.elements[i].checked = true;
			}
			else{
				document.ACTIVE.elements[i].checked = false;
			}
		}
	}
	
/************************************************/
var url = 'http://' + window.location.host + '/';
var TFD = ['www','ebooks','scripts','mobile'];
var TFT = ['Trang chủ vnict.org'];

function addFavorite(){
    var title='vnict.org - Sách điện tử - E-book';
    for(var i=0;i<TFD.length;i++)
    {
        if(url.indexOf(TFD[i])>-1)
        {
            title = TFT[i];
            break;
        }
    }  
    if(document.all)
        window.external.AddFavorite(url,title);
	else if (window.sidebar)
        window.sidebar.addPanel(title, url, "")
};

function confirmDelete(delUrl) {
  if (confirm("Bạn chắc chắn muốn xóa bỏ không ?")) {
    document.location = delUrl;
  }
}
 /***************************************************************************/
 function makeRequest(url,id) {
        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;
        }
        http_request.onreadystatechange = function() { 
			showresult(http_request,id); 
		};
        http_request.open('GET', url, true);
        http_request.send(null);
    }
    function showresult(http_request,id) {
		document.getElementById(id).innerHTML="<br><p align=\"center\"><img src=\"./hinhanh/loading.gif\">Loading ...</p>";
        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
			document.getElementById(id).innerHTML=http_request.responseText;
                //alert(http_request.responseText);
            } else {
                alert('There was a problem with the request.');
            }
        }

    }