Select Category Example

{{#form:

       {{#input:type=hidden|name=title|value=Select_Category_Example}}
       {{#input:type=hidden|name=summary|value=Article category updated from form}}
       {{#input:type=hidden|name=caction|value=append}}
       {{#input:type=hidden|name=regexp|id=setcat-regexp}}
       {{#input:type=hidden|name=content|id=setcat-content}}

       {{#input: type   = select
               | *Select category{{#dpl: namespace = Category | mode = userformat | listseparators = ,\n*%TITLE%,, }}
               | onChange = 
                       document.getElementById('setcat-regexp').setAttribute('value','\\[\\[Category:'+this.value+'.*?\\]\\]');
                       document.getElementById('setcat-content').setAttribute('value','['+'[Category:'+this.value+']'+']');
       }}

       {{#input:type=submit|value=Categorise!}}

}}