function maximiza(top1)
{
  top1.window.moveTo(0,0);
  if (document.all) {                                                                     
  top1.window.resizeTo(screen.availWidth,screen.availHeight);                              
  }                                                                                       
  else if (document.layers||document.getElementById) {                                    
  if (top1.window.outerHeight<screen.availHeight||top1.window.outerWidth<screen.availWidth){
  top1.window.outerHeight = screen.availHeight;                                            
  top1.window.outerWidth = screen.availWidth;                                              
  }                                                                                       
  }                                                                                       
}
function openpopup(popurl){
winpops=window.open(popurl,"","width=800,height=600,scrollbars,resizable,")
maximiza(winpops)
}