var doit = true
function showm(ob,pict) {
if(doit) {
document.getElementById(ob).style.height = '125'
document.getElementById(pict).src = 'arrowl.gif'
doit = false
}
else {
document.getElementById(ob).style.height = '20'
document.getElementById(pict).src = 'arrowd.gif'
doit = true
}
}