How to find culture and publickeytoken of dll deployed on GAC

https://camerondwyer.wordpress.com/2013/11/01/how-to-find-the-version-culture-and-publickeytoken-of-an-assemby-dll-using-powershell/

Or use the SN tool in VS Developer command prompt.

If the assembly has been deployed to GAC, navigate to the folder containing the assembly and follow the article above, using reflection to load the assembly.

Check if it’s edit mode in javascript in Sharepoint

var wikiInEditMode = document.forms[MSOWebPartPageFormName]._wikiPageMode.value;
if (wikiInEditMode == “Edit”)
{
// wiki page is in edit mode
}
else
{
// wiki page is not in edit mode
}

Another solution http://sharepoint.stackexchange.com/questions/12792/how-do-i-know-if-the-page-is-in-edit-mode-from-javascript

var inDesignMode = document.forms[MSOWebPartPageFormName].MSOLayout_InDesignMode.value;

if (inDesignMode == "1")
{
    // page is in edit mode
}
else
{
    // page is in browse mode
}