diff --git a/config/config.php b/config/config.php
index 0d7c5b17..37c9a740 100644
--- a/config/config.php
+++ b/config/config.php
@@ -491,6 +491,7 @@ $config['head']['default']['js']  = array(
 	"___path.static.skin___/js/stream.js",
 	"___path.static.skin___/js/photoset.js",
 	"___path.static.skin___/js/markup_settings.js",
+	"___path.static.skin___/js/hook.js",
 );
 $config['head']['default']['css'] = array(
 	"___path.static.skin___/css/reset.css",
diff --git a/templates/skin/developer-jquery/js/hook.js b/templates/skin/developer-jquery/js/hook.js
new file mode 100644
index 00000000..34a4f2ab
--- /dev/null
+++ b/templates/skin/developer-jquery/js/hook.js
@@ -0,0 +1,106 @@
+/**
+ * JavaScript-hooks
+ * 
+ * Examples:
+ * 
+ * - inject function call/code at top of function body
+ * ls.hook.inject([ls.lang,'get'], function(){ls.msg.notice('lang debug');})});
+ * ls.hook.inject([ls,'ajax'], 'alert(url)');
+ * 
+ * - add and call hooks
+ * ls.hook.add('somefunc_hook1_name', function(param1, param2){ ... });
+ * 
+ * function someFunc(..params..){
+ * 	//code
+ * 	ls.hook.run('somefunc_hook1_name', [param1,param2], thisArg);
+ * 	//code
+ * }
+ * 
+ * @author Sergey S Yaglov
+ * @link http://livestreet.ru/profile/1d10t
+ */
+ls.hook = (function ($) {
+	this.hooks = {};
+	
+	this.cloneFunc = function(func,as_text,no_def) {
+		var f;
+		if(typeof func=='string'){
+			eval('f = '+func+';');
+		}else if(typeof func=='object'){
+			f = func[0][func[1]];
+		}else{
+			f = func;
+		}
+		if(typeof f=='function'){
+			var fbody = f.toString().replace(/^(function)([^\(]*)\(/gi, '$1 (');
+			if(typeof as_text!='undefined' && as_text){
+				if(typeof no_def!='undefined' && no_def){
+					return fbody.replace(/^[^\{]*\{/gi, '').replace(/\}$/gi, '');
+				}else{
+					return fbody;
+				}
+			}
+			return eval('('+fbody+')');
+		}
+		return function(){};
+	};
+	
+	/**
+	 * @param func functionName|object[parentObject,functionName] Name of function that will be modified
+	 * @param funcInj function|string Function or code to be injected
+	 * @param marker string 
+	 */
+	this.inject = function(func,funcInj,marker) {
+		var funcBody = ls.hook.cloneFunc(func, 1);
+		var funcDefinition = (typeof func=='string'?func:(typeof func=='object'?'func[0][func[1]]':'func'))+' = ';
+		var replaceFrom = /\{/m;
+		var replaceTo = '{ ';
+		if(typeof marker == 'string'){
+			replaceFrom = new RegExp('(/\\*'+marker+'\\*/)', 'm');
+			replaceTo = '$1';
+		}
+		if(typeof funcInj=='function'){
+			var funcInjName = 'funcInj'+Math.floor(Math.random()*1000000);
+			eval('window["'+funcInjName+'"] = funcInj;');
+			eval(funcDefinition + funcBody.replace(replaceFrom,replaceTo+funcInjName+'.apply(this, arguments); '));
+		}else{
+			eval(funcDefinition  + funcBody.replace(replaceFrom,replaceTo+funcInj+'; '));
+		}
+	};
+	
+	this.add = function(name,callback,priority) {
+		var priority = priority || 0;
+		if(typeof ls.hook.hooks[name] == 'undefined'){
+			ls.hook.hooks[name] = [];
+		}
+		ls.hook.hooks[name].push({
+			'callback': callback,
+			'priority': priority
+		});
+	};
+	
+	this.run = function(name,params,o) {
+		var params = params || [];
+		var hooks = ls.hook.hooks;
+		if(typeof hooks[name] != 'undefined'){
+			hooks[name].sort(function(a,b){
+				return a.priority > b.priority ?
+					1
+					: (a.priority < b.priority ? -1 : 0)
+				;
+			});
+			for(var i in hooks[name]){
+				var callback = hooks[name][i].callback;
+				if(typeof callback == 'function'){
+					callback.apply(o, params);
+				}else if(typeof callback == 'object'){
+					callback[0][callback[1]].apply(o, params);
+				}else{
+					eval('(function(){'+callback+'}).apply(o, params);');
+				}
+			}
+		}
+	};
+	
+	return this;
+}).call(ls.hook || {},jQuery);
\ No newline at end of file
diff --git a/templates/skin/new-jquery/js/hook.js b/templates/skin/new-jquery/js/hook.js
new file mode 100644
index 00000000..34a4f2ab
--- /dev/null
+++ b/templates/skin/new-jquery/js/hook.js
@@ -0,0 +1,106 @@
+/**
+ * JavaScript-hooks
+ * 
+ * Examples:
+ * 
+ * - inject function call/code at top of function body
+ * ls.hook.inject([ls.lang,'get'], function(){ls.msg.notice('lang debug');})});
+ * ls.hook.inject([ls,'ajax'], 'alert(url)');
+ * 
+ * - add and call hooks
+ * ls.hook.add('somefunc_hook1_name', function(param1, param2){ ... });
+ * 
+ * function someFunc(..params..){
+ * 	//code
+ * 	ls.hook.run('somefunc_hook1_name', [param1,param2], thisArg);
+ * 	//code
+ * }
+ * 
+ * @author Sergey S Yaglov
+ * @link http://livestreet.ru/profile/1d10t
+ */
+ls.hook = (function ($) {
+	this.hooks = {};
+	
+	this.cloneFunc = function(func,as_text,no_def) {
+		var f;
+		if(typeof func=='string'){
+			eval('f = '+func+';');
+		}else if(typeof func=='object'){
+			f = func[0][func[1]];
+		}else{
+			f = func;
+		}
+		if(typeof f=='function'){
+			var fbody = f.toString().replace(/^(function)([^\(]*)\(/gi, '$1 (');
+			if(typeof as_text!='undefined' && as_text){
+				if(typeof no_def!='undefined' && no_def){
+					return fbody.replace(/^[^\{]*\{/gi, '').replace(/\}$/gi, '');
+				}else{
+					return fbody;
+				}
+			}
+			return eval('('+fbody+')');
+		}
+		return function(){};
+	};
+	
+	/**
+	 * @param func functionName|object[parentObject,functionName] Name of function that will be modified
+	 * @param funcInj function|string Function or code to be injected
+	 * @param marker string 
+	 */
+	this.inject = function(func,funcInj,marker) {
+		var funcBody = ls.hook.cloneFunc(func, 1);
+		var funcDefinition = (typeof func=='string'?func:(typeof func=='object'?'func[0][func[1]]':'func'))+' = ';
+		var replaceFrom = /\{/m;
+		var replaceTo = '{ ';
+		if(typeof marker == 'string'){
+			replaceFrom = new RegExp('(/\\*'+marker+'\\*/)', 'm');
+			replaceTo = '$1';
+		}
+		if(typeof funcInj=='function'){
+			var funcInjName = 'funcInj'+Math.floor(Math.random()*1000000);
+			eval('window["'+funcInjName+'"] = funcInj;');
+			eval(funcDefinition + funcBody.replace(replaceFrom,replaceTo+funcInjName+'.apply(this, arguments); '));
+		}else{
+			eval(funcDefinition  + funcBody.replace(replaceFrom,replaceTo+funcInj+'; '));
+		}
+	};
+	
+	this.add = function(name,callback,priority) {
+		var priority = priority || 0;
+		if(typeof ls.hook.hooks[name] == 'undefined'){
+			ls.hook.hooks[name] = [];
+		}
+		ls.hook.hooks[name].push({
+			'callback': callback,
+			'priority': priority
+		});
+	};
+	
+	this.run = function(name,params,o) {
+		var params = params || [];
+		var hooks = ls.hook.hooks;
+		if(typeof hooks[name] != 'undefined'){
+			hooks[name].sort(function(a,b){
+				return a.priority > b.priority ?
+					1
+					: (a.priority < b.priority ? -1 : 0)
+				;
+			});
+			for(var i in hooks[name]){
+				var callback = hooks[name][i].callback;
+				if(typeof callback == 'function'){
+					callback.apply(o, params);
+				}else if(typeof callback == 'object'){
+					callback[0][callback[1]].apply(o, params);
+				}else{
+					eval('(function(){'+callback+'}).apply(o, params);');
+				}
+			}
+		}
+	};
+	
+	return this;
+}).call(ls.hook || {},jQuery);
\ No newline at end of file