if (document.images) {

  var button1_up = new Image();
  button1_up.src = "images/primary_nav/home.jpg";
  
  var button1_over = new Image();
  button1_over.src = "images/primary_nav/hover/home.jpg";
}

function over_button1() {
  if (document.images) {
    document["buttonOne"].src = button1_over.src
  }
}

function up_button1() {
  if (document.images) {
    document["buttonOne"].src = button1_up.src
  }
}




if (document.images) {

  var button1_up2 = new Image();
  button1_up2.src = "images/primary_nav/profile.jpg";
  
  var button1_over2 = new Image();
  button1_over2.src = "images/primary_nav/hover/profile.jpg";
}

function over_button2() {
  if (document.images) {
    document["buttonTwo"].src = button1_over2.src
  }
}

function up_button2() {
  if (document.images) {
    document["buttonTwo"].src = button1_up2.src
  }
}




if (document.images) {

  var button1_up3 = new Image();
  button1_up3.src = "images/primary_nav/products_services.jpg";
  
  var button1_over3 = new Image();
  button1_over3.src = "images/primary_nav/hover/products_services.jpg";
}

function over_button3() {
  if (document.images) {
    document["buttonThree"].src = button1_over3.src
  }
}

function up_button3() {
  if (document.images) {
    document["buttonThree"].src = button1_up3.src
  }
}




if (document.images) {

  var button1_up4 = new Image();
  button1_up4.src = "images/primary_nav/project_library.jpg";
  
  var button1_over4 = new Image();
  button1_over4.src = "images/primary_nav/hover/project_library.jpg";
}

function over_button4() {
  if (document.images) {
    document["buttonFour"].src = button1_over4.src
  }
}

function up_button4() {
  if (document.images) {
    document["buttonFour"].src = button1_up4.src
  }
}



if (document.images) {

  var button1_up5 = new Image();
  button1_up5.src = "images/primary_nav/product_data_sheets.jpg";
  
  var button1_over5 = new Image();
  button1_over5.src = "images/primary_nav/hover/product_data_sheets.jpg";
}

function over_button5() {
  if (document.images) {
    document["buttonFive"].src = button1_over5.src
  }
}

function up_button5() {
  if (document.images) {
    document["buttonFive"].src = button1_up5.src
  }
}



if (document.images) {

  var button1_up6 = new Image();
  button1_up6.src = "images/primary_nav/contact_us.jpg";
  
  var button1_over6 = new Image();
  button1_over6.src = "images/primary_nav/hover/contact_us.jpg";
}

function over_button6() {
  if (document.images) {
    document["buttonSix"].src = button1_over6.src
  }
}

function up_button6() {
  if (document.images) {
    document["buttonSix"].src = button1_up6.src
  }
}