function winopen(wname)
{
self.name='main'; 
window.open(wname,'','menubar=no,scrollbars=yes,resizable=yes,width=600,height=500');
} 

function wn(wname)
{
//self.name='main'; 
window.open(wname,'','menubar=no,scrollbars=yes,resizable=yes,width=615,height=585');
} 

function wn1(wname, ht, wt)
{
window.open(wname,'','menubar=no,scrollbars=yes,resizable=yes,width=' + wt + ',height=' + ht);
}