Defining jquery plugins

I have a problem with defining jquery plugins. In asp.net page located RadAjaxPanels, in which are loaded widgets (asp.net controls). In the widget I define jquery plugins:

<script src="../../JS/jquery-1.5.1.js" type="text/javascript"></script>
<script src='../../JS/jquery-ui-1.8.16.custom.min.js' type="text/javascript"></script>
<script src="../../JS/ui.spinner.min.js" type="text/javascript"></script>
<script src="../../JS/jquery.blockUI.js" type="text/javascript"></script>
<script src="../../JS/jquery.json-2.2.min.js" type="text/javascript"></script>

But at the first applying to开发者_Go百科 the plug-in (eg $('#tReports').unblock()) an error occurs: "Object doesn't support property or method 'unblock'". Maybe it's because conflicts with jquery defined in Telerik control. Jquery object works properly. Please help :)

It sounds like you're including jQuery more than once, and the instance of jQuery that you're using to call unblock() is not the one the plug-in has extended. Possibly from telerik, but also possibly from having multiple user controls with jQuery script blocks.

You need to put a system in-place to ensure proper composition of script includes (like ScriptManager or RadScriptManager in WebForms) .