function $import(path, type, title) {
	var s, i;
	if (type == "js") {
		var ss = document.getElementsByTagName("script");
		for (i = 0; i < ss.length; i++) {
			if (ss[i].src && ss[i].src.indexOf(path) != -1)
				return;
		}
		s = document.createElement("script");
		s.type = "text/javascript";
		s.src = path;
	} else if (type == "css") {
		var ls = document.getElementsByTagName("link");
		for (i = 0; i < ls.length; i++) {
			if (ls[i].href && ls[i].href.indexOf(path) != -1)
				return;
		}
		s = document.createElement("link");
		s.rel = "alternate stylesheet";
		s.type = "text/css";
		s.href = path;
		s.title = title;
		s.disabled = false;
	} else
		return;
	var head = document.getElementsByTagName("head")[0];
	head.appendChild(s);
}

function UrlEncode(str){ 
   var ret=""; 
   var strSpecial="!\"#$%&'()*+,/:;<=>?[]^`{|}~%"; 
   for(var i=0;i<str.length;i++){ 
   var chr = str.charAt(i); 
     var c=str2asc(chr); 
     if(parseInt("0x"+c) > 0x7f){ 
       ret+="%"+c.slice(0,2)+"%"+c.slice(-2); 
     }else{ 
       if(chr==" ") 
         ret+="+"; 
       else if(strSpecial.indexOf(chr)!=-1) 
         ret+="%"+c.toString(16); 
       else 
         ret+=chr; 
     } 
   } 
   return ret; 
}

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;
	}
}