function oc(u) // tox class page
{  
	var f = window.open('','cls','location=yes,toolbar=yes,menubar=no,width=700,height=550,scrollbars=yes,resizable=yes, dependent=yes') ;
	f.location.href = u ;
	f.focus() ;	
}

function os(u) // substance page
{  
	var f = window.open('','subst','location=yes,toolbar=yes,menubar=no,width=700,height=550,scrollbars=yes,resizable=yes, dependent=yes') ;
	f.location.href = u ;
	f.focus() ;	
}


function ob(u) // binary interaction documentation page, pdf file
{  
	var f = window.open('','bin','location=yes,toolbar=yes,menubar=no,width=700,height=550,scrollbars=yes,resizable=yes, dependent=yes') ;
	f.location.href = u ;
	f.focus() ;	
}

function osel() // to apply bulk change to user selections
{  
	var f = window.open('','demo_controler','location=yes,toolbar=yes,menubar=no,width=200,height=550,scrollbars=yes,resizable=yes, dependent=yes') ;
	f.location.href = 'demo_controler.htm' ;
	f.focus() ;	
}