function openbox(url,name,winwidth,winheight)
{
	mywin = window.open(url,name,'location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,marginheight=0,marginwidth=0,leftmargin=0,topmargin=0,width=' + winwidth + ',height=' + winheight + 'toolbar=0');                          
	mywin.focus();
}