focus()
dirc = document.location.toString().split('/')
filename=dirc[dirc.length-1]
fileno=filename.split('.')


nextfile=parseInt(fileno)+1
prefile=parseInt(fileno)-1

document.write("<table border=0 align=center>")
if(prefile>0)
{
	document.write("<td><a href=1.htm><img src='/images/first1.gif' border=0 alt='First'></a></td>")
	document.write("<td><a href="+prefile+".htm><img src='/images/back1.gif' border=0 alt='Back'></a></td>")
}

if(nextfile<=30)
{
	document.write("<td><a href="+nextfile+".htm><img src='/images/next1.gif' border=0 alt='Next'></a></td>")
	document.write("<td><a href=30.htm><img src='/images/last1.gif' border=0 alt='Last'></a></td>")
}


document.write("</table>")