function ChangeTextDefaultPro_ID(objID, string, color) {
    var obj = document.getElementById(objID);
    ChangeTextDefaultPro(obj, string, color);
}

function ChangeTextDefaultPro(obj, string, color) {
    if (obj.value == '' || obj.value == string) 
    {
        obj.value = string; 
        if(color)
        {
            obj.style.color = color;
        }
        else
        {
            obj.style.color = 0x000000;
        }
    }
    else 
    {
        obj.style.color = 0x000000;
    }
}
function doClickSearchTitle(buttonName, e) {//the purpose of this function is to allow the enter key to point to the correct button to click.
    var key;

    if (window.event)
        key = window.event.keyCode;     //IE
    else
        key = e.which;     //firefox

    if (key == 13) {
        //Get the button the user wants to have clicked
        var btn = document.getElementById(buttonName);
        if (btn != null) { //If we find the button click it
            btn.click();
            event.keyCode = 0
        }
    }
}

function ChangeTextFocusPro(obj, string) {
    if (obj.value == string) {
        obj.value = ''; 
        obj.style.color = 0x000000;
    }
}

function ctlHeader_ShowDiv(id)
{
    if(document.getElementById(id).style.display=="block")
    {
        document.getElementById(id).style.display="none";
    }
    else
    {
        document.getElementById(id).style.display="block";
    }    
    return false;
}

function ctlHeader_selectTab(ctlID)
{
    var TabName = document.getElementById(ctlID+"_txtTabName").value;
    var Tab;
    var subLinkId = 1;
    
    switch(TabName.toUpperCase())
    {
        case "TRANG CHỦ":            
            Tab = document.getElementById("tabHome");
            Tab.className = "actives";
            subLinkId = 1;
            break;
        case "SÀN GIAO DỊCH":
            Tab = document.getElementById("tabSan");
            Tab.className = "actives";
            subLinkId = 2;
            break;
        case "DỰ ÁN":
            Tab = document.getElementById("tabDuAn");
            Tab.className = "actives";
            subLinkId = 3;
            break;
        case "GIỚI THIỆU":
            Tab = document.getElementById("tabGioiThieu");
            Tab.className = "actives";
            subLinkId = 4;
            break;   
        case "TIN TỨC":
            Tab = document.getElementById("tabTinTuc");
            Tab.className = "actives";
            subLinkId = 5;
            break;
        case "CẨM NANG":
            Tab = document.getElementById("tabCamNang");
            Tab.className = "actives";
            subLinkId = 6;
            break; 
        case "DIỄN ĐÀN":
            Tab = document.getElementById("tabDienDan");
            Tab.className = "actives";
            subLinkId = 7;
            break;             
    }
    var layer = "s" + subLinkId + "_m";
    var els = document.getElementById('sublinks').getElementsByTagName('ul');
    for(var i=0;i<els.length;i++)
    {
        els[i].style.display= 'none';
    }
    document.getElementById(layer).style.display= 'block';
}

function ctlHeader_load(ctlID)
{    
    ctlHeader_selectTab(ctlID);
}

function btn_AnHienBanDo_click(ctl) {
    if (ctl.className == "btn_xem_ban_do") {
        ctl.className = "btn_an_ban_do";
        document.getElementById("divBanDoLon").style.display = "";
    }
    else {
        ctl.className = "btn_xem_ban_do";
        document.getElementById("divBanDoLon").style.display = "none";
    }
}

function sublink_mouseover(subLinkId) {
    var layer = subLinkId + "_m";
    var els = document.getElementById('sublinks').getElementsByTagName('ul');
    for (var i = 0; i < els.length; i++) {
        els[i].style.display = 'none';
    }
    document.getElementById(layer).style.display = 'block';
}

function sublink_mouseover_sub(subId) {
    var sub = subId.substring(0, 2);
    sub.className = 'boimaumenu';
}