roprodserv = new Image(); roprodserv.src="images/b_ro_prodserv.gif";
rocontact = new Image(); rocontact.src="images/b_ro_contact.gif";
roabout = new Image(); roabout.src="images/b_ro_about.gif";
rosysint = new Image(); rosysint.src="images/b_ro_sysint.gif";
rosofdev = new Image(); rosofdev.src="images/b_ro_sofdev.gif";
roiidev = new Image(); roiidev.src="images/b_ro_iidev.gif";
rotourapp = new Image(); rotourapp.src="images/b_ro_tourapp.gif";

function popUp(on)
{ if(on)
  { if(document.getElementById) { document.getElementById('menu').style.visibility='visible'; }
    if(document.layers)         { document.layers['menu'].visibility='visible'; }
    if(document.all)            { document.all['menu'].style.visibility='visible'; } }
  else
  { if(document.getElementById) { document.getElementById('menu').style.visibility='hidden'; }
    if(document.layers)         { document.layers['menu'].visibility='hidden'; }
    if(document.all)            { document.all['menu'].style.visibility='hidden'; } } }