<script language="ecmascript" type="text/ecmascript">
 
    var clientContext = null;
    var oWeb = null;
    var oListColl = null;
    var oList = null;
    var listCreationInfo = null;
   
 
    function createList() {
        clientContext = new SP.ClientContext.get_current();
        oWeb = clientContext.get_web();
        listCreationInfo = new SP.ListCreationInformation();
        listCreationInfo.set_title('Custom List');
        listCreationInfo.set_templateType(SP.ListTemplateType.genericList);
        oList = oWeb.get_lists().add(listCreationInfo);
        clientContext.load(oList);
        clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));
    }
 
    function onQuerySucceeded() {
        
        alert(oList.get_title() + ' created successfully.');
    }
 
    function onQueryFailed(sender, args) {
        alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
    }
 
 
 
</script>
<input id="btnCreateList" onclick="createList()" type="button" value="Create Custom List"/>