function Refresh(control_id, textbox){
    try{
        var text = textbox.value.toLowerCase();
        var control = document.getElementById(control_id);
        if(control){
            for(i=0; i<control.childNodes.length; i++){
                var child = control.childNodes[i].firstChild;
                var parent = control.childNodes[i];
                if(child && child.tagName=="A"){
                    if(text.length==0 || child.name.toLowerCase().indexOf(text)>-1){
                        child.style.display = '';
                        parent.style.display = 'inline-block'
                    }else{
                        child.style.display = 'none';
                        parent.style.display = 'none';
                    }
                }
            }
        }
    }catch(Exception){
        alert(Exception);
    }
}