function langas(psl) {
props=window.open(psl,'keke','toolbars=0,scrollbars=yes,location=0,statusbars=0,menubars=0,resizable=1,width=515,height=320');
}

function langas2(psl) {
props=window.open(psl,'keke','toolbars=1,scrollbars=yes,location=0,statusbars=1,resizable=1,width=700,height=440');
}