function wind(str) {
searchWin = window.open(str,'prec','scrollbars=yes,resizable=yes,width=650,height=480, status=no,location=no,toolbar=no');
}

function windbig(str) {
searchWin = window.open(str,'precbig','scrollbars=yes,resizable=yes,width=620,height=480, status=no,location=no,toolbar=no');
}


function prec(str) {

        searchWin = window.open(str,'prec','scrollbars=yes,resizable=yes,width=650,height=550,status=no,location=no,toolbar=no');

}