if (document.images) {

// Main Nav Buttons
button1 = new Image
button2 = new Image
button3 = new Image
button4 = new Image
button5 = new Image
button6 = new Image
button7 = new Image
button8 = new Image
button9 = new Image
button10 = new Image
button11 = new Image
button12 = new Image
button13 = new Image
button14 = new Image

// 2nd Tier Buttons
button15 = new Image
button16 = new Image
button17 = new Image
button18 = new Image
button19 = new Image
button20 = new Image
button29 = new Image
button30 = new Image

// Page Buttons
button21 = new Image
button22 = new Image
button23 = new Image
button24 = new Image
button31 = new Image
button32 = new Image

// Next and Previous Buttons
button25 = new Image
button26 = new Image
button27 = new Image
button28 = new Image

// Main Nav Rollovers
button1.src = 'images/products.gif'
button2.src = 'images/products-over.gif'
button3.src = 'images/about_us.gif'
button4.src = 'images/about_us-over.gif'
button5.src = 'images/portfolio.gif'
button6.src = 'images/portfolio-over.gif'
button7.src = 'images/ftp_access.gif'
button8.src = 'images/ftp_access-over.gif'
button9.src = 'images/contact_us.gif'
button10.src = 'images/contact_us-over.gif'
button11.src = 'images/quote_request.gif'
button12.src = 'images/quote_request-over.gif'
button13.src = 'images/radio.gif'
button14.src = 'images/radio-over.gif'
button15.src = 'images/ourequipment_page1.gif'
button16.src = 'images/ourequipment_page1-over.gif'
button17.src = 'images/ourequipment_page2.gif'
button18.src = 'images/ourequipment_page2-over.gif'

// 2nd Tier Nav Rollovers
button15.src = 'images/2nd_tier/who_we_are.gif'
button16.src = 'images/2nd_tier/who_we_are-over.gif'
button17.src = 'images/2nd_tier/our_capabilities.gif'
button18.src = 'images/2nd_tier/our_capabilities-over.gif'
button19.src = 'images/2nd_tier/our_equipment.gif'
button20.src = 'images/2nd_tier/our_equipment-over.gif'
button29.src = 'images/2nd_tier/community.gif'
button30.src = 'images/2nd_tier/community-over.gif'

//Page Rollovers
button21.src = 'images/ourequipment_page1.gif'
button22.src = 'images/ourequipment_page1-over.gif'
button23.src = 'images/ourequipment_page2.gif'
button24.src = 'images/ourequipment_page2-over.gif'
button31.src = 'images/ourequipment_page3.gif'
button32.src = 'images/ourequipment_page3-over.gif'

//Next and Prevoius Rollovers
button25.src = 'images/previous_button.gif'
button26.src = 'images/previous_button-over.gif'
button27.src = 'images/next_button.gif'
button28.src = 'images/next_button-over.gif'

}