function open_window(url)
{
window.open(url,"Info",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=350,height=350,top=40,left=40')
}

function open_calc(url)
{
window.open(url,"Calc",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=265,height=500,top=40,left=40')
}