var Url = {
 
	// public method for url encoding
	encode : function (string) {
		return escape(this._utf8_encode(string));
	},
 
	// public method for url decoding
	decode : function (string) {
		return this._utf8_decode(unescape(string));
	},
 
	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";
 
		for (var n = 0; n < string.length; n++) {
 
			var c = string.charCodeAt(n);
 
			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	},
 
	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
 
		while ( i < utftext.length ) {
 
			c = utftext.charCodeAt(i);
 
			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
 
		}
 
		return string;
	}
 
}

//phan danh cho goiytimkiem goi y tim kiem
        var timer_goiytimkiem;
        var timer_goiytimkiem2;
        var dodaichuoitimkiem = 0;
        function goiytimkiem() {
        	
            var dodaichuoitimkiem2 = document.getElementById('filter_keyword').value.length;
            if (dodaichuoitimkiem2 != dodaichuoitimkiem || dodaichuoitimkiem2 == 0) {
                dodaichuoitimkiem = dodaichuoitimkiem2;
                xoatimout_goiytimkiem();
                timer_goiytimkiem2 = clearTimeout(timer_goiytimkiem2);
                timer_goiytimkiem2 = setTimeout("goiytimkiem2()", 1000);
            }
        }
        function goiytimkiem2() {
            makeRequest_chuan_gytk('index.php?route=product/search/ajax&keyword=' + Url.encode(document.getElementById("filter_keyword").value), 'goiytimkiemcon');            
        }
        function xoatimout_goiytimkiem() {
            timer_goiytimkiem = clearTimeout(timer_goiytimkiem);
            document.getElementById("goiytimkiem").style.display = "Block";
        }
        function donggoiytimkiem() {
            timer_goiytimkiem = setTimeout("donggoiytimkiem2()", 1000);
        }
        function donggoiytimkiem2() {
            document.getElementById("goiytimkiem").style.display = "none";
        }
        function chuyenkieugo_new() {

            if (on_off == 1) {
                on_off = 0;
                document.getElementById('hienthibogov').style.display = 'none';
                document.getElementById('hienthibogoe').style.display = 'block';
            }
            else {
                on_off = 1;
                document.getElementById('hienthibogoe').style.display = 'none';
                document.getElementById('hienthibogov').style.display = 'block';

            }
        }
        function kiemtracachtimkiem() {
            if (document.getElementById("cachtimkiem").options[document.getElementById("cachtimkiem").selectedIndex].value == "---") {
                document.getElementById("cachtimkiem").selectedIndex = document.getElementById("cachtimkiem").selectedIndex * 1 + 1;
            }
        }