Custom field in list view web part

Hi,

I have created custom field in sharepoint 2013 having hyperlink.

When I add this custom field to list it works fine. But I add corresponding list view web part on web part page, this field behaves weirdly.

I am doing all processing using ecma script and client object model, for which I need list id and item id.

I am not able to get list id of corresponding list of which list view web part I have added.

How to get list id of corresponding list?

Any ideas?

Thanks in advance.

Rahdey