function vensteropenen (Adresse) 
{
  venster1 = window.open(Adresse, "Artikelen", "width=794,height=508,left=100,top=100"); venster1.focus();
  venster1.focus();
}

function vensteropenen2 (Adresse) 
{
  venster2 = window.open(Adresse, "Kleding", "width=388,height=539,left=350,top=100"); venster2.focus();
  venster2.focus();
}