function checkinput(){
	try{
        if(document.getElementById('fsearch').value == 'Tìm kiếm'){
            document.getElementById('fsearch').value = '';
        }
		document.getElementById('fsearch').style.color = '#000000';
		document.getElementById('fsearch').style.display = 'block';
	}catch(err){alert(err);}
    }
    function checkblur(){
        if(document.getElementById('fsearch').value == ''){
            document.getElementById('fsearch').value = 'Tìm kiếm';
        }
		document.getElementById('fsearch').style.color = '#827F7A';
    }
    function select_all(){                                           
        document.getElementById('fsearch').focus();
        document.getElementById('fsearch').select();
    }
	function searchcontent(){
        if (document.getElementById("fsearch").value != "" && document.getElementById("fsearch").value != "Tìm kiếm"){
            window.location = "/search.php?keyword=" + document.getElementById("fsearch").value;
        }
    }
    function enterHere(e){   
        var code = e.keyCode;
        if(code == 13)        
            searchcontent();
    }
    function over_support(){
        document.getElementById('support_content').style.display = 'block';
    }
    function out_support(){
        document.getElementById('support_content').style.display = 'none';
    }