function attachevent(){
    var obj1 = actb(document.getElementById('keywords'),jsarray);
}

function show_hide_element(element){
    var new_state = (document.getElementById(element).style.display == 'none') ? 'block' : 'none';
    document.getElementById(element).style.display = new_state;
} 

function beforeSubmit(){
    document.getElementById('uni').disabled = true;
    if(document.getElementById('all').checked == true)
        document.getElementById('all').disabled = true;
    return true;
}
function open_help_window(){
    var oElement = document.getElementById('keywords');
    var offsetLeftValue = 0;
    while(oElement != null ) {
        offsetLeftValue += oElement.offsetLeft;
        oElement = oElement.offsetParent;
    }
    newwindow = window.open('/help_search.html','help_window','height=360,width=600,left='+offsetLeftValue+',top=300,toolbar=no,menubar=no,scrollbars=no,resizable=no,location=no,directories=no,status=no');
    //if (window.focus) {newwindow.focus()}
    return false;
}
    
function ajaxShowSelectMenu(selectmenu, str){

    var xmlhttp;
    
    //function showUser(str){
        xmlhttp=GetXmlHttpObject();
        if (xmlhttp==null){
            alert ("Browser does not support HTTP Request");
            return;
        }
        if(selectmenu == 'faculties'){
            document.getElementById('upload_specialties_tr').style.display = 'none';
            if(document.forms['upload_form'].elements['specialty'])
                document.forms['upload_form'].elements['specialty'].value = '0';
            var url="modules/ajax_get_faculties.php";
        }
        if(selectmenu == 'specialties'){
            var url="modules/ajax_get_specialties.php";
        }
        
        url=url+"?q="+str;
        url=url+"&sid="+Math.random();
        xmlhttp.onreadystatechange=stateChanged;
        xmlhttp.open("GET",url,true);
        xmlhttp.send(null);
    //}
        
    function stateChanged(){
        if (xmlhttp.readyState == 4){
            document.getElementById('upload_'+selectmenu+'_td').innerHTML=xmlhttp.responseText;
            document.getElementById('upload_'+selectmenu+'_tr').style.display = 'table-row';
            if(selectmenu == 'faculties')
                document.forms['upload_form'].elements['faculty'].focus();
            else if(selectmenu == 'specialties')
                document.forms['upload_form'].elements['specialty'].focus();
        }
    }
        
    function GetXmlHttpObject(){
        if (window.XMLHttpRequest){
            // code for IE7+, Firefox, Chrome, Opera, Safari
            return new XMLHttpRequest();
        }
        if (window.ActiveXObject){
            // code for IE6, IE5
            return new ActiveXObject("Microsoft.XMLHTTP");
        }
        return null;
    }
}