function iPop(img,w,h,ttl)
{
	iPopURL = 'Show.asp' // set as location of ipop.html
	url = iPopURL + '?' + img + (ttl ? '&'+escape(ttl) : '')
	l = (screen.width-w)/2
	t = (screen.height-h)/2
	attribs = 'width='+(w)+',height='+(h)+',left='+l+',top='+t
	open(url,'imgWin',attribs)
}