function jump(flag) {
    time="";
    if( 0 == flag ) {
        time = 40000;
    } else if ( 1 == flag ) {
        time = 160000;
    }
	document.timeForm.time.value = time;
	document.timeForm.submit();
}

function next() {
	document.timeForm.curso.value = parseInt(document.timeForm.curso.value) + 1;
	document.timeForm.submit();

}

function prev() {
	document.timeForm.curso.value = parseInt(document.timeForm.curso.value) - 1;
	document.timeForm.submit();

}