a[href$='.doc'], a[href$='.docx'] {
    background: transparent url(/ipswich/icon_word.gif) center right no-repeat;
    padding-right: 18px;
}
a[href$='.xls'], a[href$='.xlsx'] {
    background: transparent url(/ipswich/icon_excel.gif) center right no-repeat;
    padding-right: 18px;
}
a[href$='.pdf'] {
    background: transparent url(/ipswich/icon_pdf.gif) center right no-repeat;
    padding-right: 18px;
}
a[href$='.zip'] {
    background: transparent url(/ipswich/icon_zip.gif) center right no-repeat;
    padding-right: 18px;
}
a[href$='.txt'] {
    background: transparent url(/ipswich/icon_text.png) center right no-repeat;
    padding-right: 18px;
}