var okno_pop='';
function popup(wi,he,uerel,alignx,aligny,scrol)
{
	// Bartosz Szczecinski
  // 20.04.2006
  // Opera 8.x nie obsluguje !okno_pop.closed
	if(okno_pop && okno_pop.closed==false) {
  	okno_pop.close()
  }
	if(wi=='100%'){wi=screen.availWidth-30}
	if(he=='100%'){he=screen.availHeight-0}
	if(alignx=='left'){xx=0}
	else if(alignx=='right'){xx=(screen.availWidth-wi)-10}
	else{xx=(screen.availWidth-wi)/2}
	if(aligny=='top'){yy=0}
	else if(aligny=='bottom'){yy=(screen.availHeight-he)}
	else{yy=(screen.availHeight-he)/2}
	okno_pop=window.open(uerel, '_blank', 'scrollbars='+scrol+',height='+he+',width='+wi+',top='+yy+',left='+xx);
}