var infoBlurb = "<h1> Listen Up. </h1><p>Here at Gigahertz, we are dedicated to serving you, our customers, with professional, high quality work at affordable prices. Gigahertz has a combined 15 years of experience behind it in the fields of PC Repair, Networking, and Web Design.  Our experience ensures our customers will receive fast and efficient work at a lower cost than the competition.  We pride ourselves in our work.</p>"

function btnHomeOver() {
    document.getElementById('btnHome').style.backgroundImage = "url(images/btnHomeOver.jpg)";
}
function btnHomeOut() {
    document.getElementById('btnHome').style.backgroundImage = "url()";
}
function btnSoftwareOver() {
    document.getElementById('btnSoftware').style.backgroundImage = "url(images/btnContactOver.jpg)";
}
function btnSoftwareOut() {
    document.getElementById('btnSoftware').style.backgroundImage = "url()";
}
function btnContactOver() {
    document.getElementById('btnContact').style.backgroundImage = "url(images/btnContactOver.jpg)";
}
function btnContactOut() {
    document.getElementById('btnContact').style.backgroundImage = "url()";
}

function crossNav_pcRPROvr() {
    document.getElementById('crossNav_pcRPR').src = "images/crossNav_pcRPR.gif";
}
function crossNav_pcRPROut() {
    document.getElementById('crossNav_pcRPR').src = "images/crossNav_pcRPR_reg.gif";
}
function crossNav_webOvr() {
    document.getElementById('crossNav_web').src = "images/crossNav_web.gif";
}
function crossNav_webOut() {
    document.getElementById('crossNav_web').src = "images/crossNav_web_reg.gif";
}
function crossNav_customOvr() {
    document.getElementById('crossNav_custom').src = "images/crossNav_custom.gif";
}
function crossNav_customOut() {
    document.getElementById('crossNav_custom').src = "images/crossNav_custom_reg.gif";
}

function preloader() {
    if (document.images) {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "images/content_about_bg_blue.jpg";
      image_url[1] = "images/ghzLogo_about_blue.jpg";
      image_url[2] = "images/motto_header_blue.jpg";
      image_url[3] = "images/nav_blue_left.jpg";
      image_url[4] = "images/nav_blue_right.jpg";
      image_url[5] = "images/content_about_bg_red.jpg";
      image_url[6] = "images/ghzLogo_about_red.jpg";
      image_url[7] = "images/motto_header_red.jpg";
      image_url[8] = "images/nav_red_left.jpg";
      image_url[9] = "images/nav_red_right.jpg";
      image_url[10] = "images/content_about_bg_yellow.jpg";
      image_url[11] = "images/ghzLogo_about_yellow.jpg";
      image_url[12] = "images/motto_header_yellow.jpg";
      image_url[13] = "images/nav_yellow_left.jpg";
      image_url[14] = "images/nav_yellow_right.jpg";
      image_url[15] = "images/btnHomeOver.jpg";
      image_url[16] = "images/btnContactOver.jpg";

       var i = 0;
       for(i=0; i<=17; i++) 
         preload_image_object.src = image_url[i];
    }
}
function PCRprLoader() {
    document.getElementById('contentWrapper').style.backgroundColor = "#faffc4";
}
function WebDesLoader() {
    document.getElementById('contentWrapper').style.backgroundColor = "#dce4fe";
    document.getElementById('about').style.backgroundImage = "url(images/content_about_bg_blue.jpg)";
    document.getElementById('aboutTxt').style.backgroundImage = "url(images/ghzLogo_about_blue.jpg)";
    document.getElementById('header').style.backgroundImage = "url(images/motto_header_blue.jpg)";
    document.getElementById('headNav_right').style.backgroundImage = "url(images/nav_blue_left.jpg)";
    document.getElementById('headNav_left').style.backgroundImage = "url(images/nav_blue_right.jpg)";
}
function CustomPCLoader() {
    document.getElementById('contentWrapper').style.backgroundColor = "#fddcdc";
    document.getElementById('about').style.backgroundImage = "url(images/content_about_bg_red.jpg)";
    document.getElementById('aboutTxt').style.backgroundImage = "url(images/ghzLogo_about_red.jpg)";
    document.getElementById('header').style.backgroundImage = "url(images/motto_header_red.jpg)";
    document.getElementById('headNav_right').style.backgroundImage = "url(images/nav_red_left.jpg)";
    document.getElementById('headNav_left').style.backgroundImage = "url(images/nav_red_right.jpg)";
}
function softwareLoader() {
    document.getElementById('contentWrapper').style.backgroundColor = "#feeac3";
}
function btnPCRepairOver() {
    document.getElementById('btnPCRepair').src = "images/content_repairOvr.jpg";
    document.getElementById('aboutTxt').innerHTML = "<h1> PC Repair </h1><p> PC's have become a necessity in today's world.  Our mission is to make you love PC's again and ensure that you don't have to worry about any problems that they may cause. </p>";
}
function btnPCRepairOut() {
    document.getElementById('btnPCRepair').src = "images/content_repairReg.jpg";
    document.getElementById('aboutTxt').innerHTML = infoBlurb;
}
function btnWebDesignOver() {
    document.getElementById('btnWebDesign').src = "images/content_WebDesignOvr.jpg";
    document.getElementById('about').style.backgroundImage = "url(images/content_about_bg_blue.jpg)";
    document.getElementById('aboutTxt').style.backgroundImage = "url(images/ghzLogo_about_blue.jpg)";
    document.getElementById('header').style.backgroundImage = "url(images/motto_header_blue.jpg)";
    document.getElementById('headNav_right').style.backgroundImage = "url(images/nav_blue_left.jpg)";
    document.getElementById('headNav_left').style.backgroundImage = "url(images/nav_blue_right.jpg)";
    document.getElementById('aboutTxt').innerHTML = "<h1>Web Design</h1><p> Gigahertz Design Services offers a convenient, professional service that is designed to fit most budgets.  A 3-page custom-design website starts at $400 (including server and domain). </p>";
}
function btnWebDesignOut() {
    document.getElementById('btnWebDesign').src = "images/content_WebDesignReg.jpg";
    document.getElementById('about').style.backgroundImage = "url(images/content_about_bg_yellow.jpg)";
    document.getElementById('aboutTxt').style.backgroundImage = "url(images/ghzLogo_about_yellow.jpg)";
    document.getElementById('header').style.backgroundImage = "url(images/motto_header_yellow.jpg)";
    document.getElementById('headNav_right').style.backgroundImage = "url(images/nav_yellow_left.jpg)";
    document.getElementById('headNav_left').style.backgroundImage = "url(images/nav_yellow_right.jpg)";
    document.getElementById('aboutTxt').innerHTML = infoBlurb;
}
function btnCustomPCOver() {
    document.getElementById('btnCustomPC').src = "images/content_customPCOvr.jpg";
    document.getElementById('about').style.backgroundImage = "url(images/content_about_bg_red.jpg)";
    document.getElementById('aboutTxt').style.backgroundImage = "url(images/ghzLogo_about_red.jpg)";
    document.getElementById('header').style.backgroundImage = "url(images/motto_header_red.jpg)";
    document.getElementById('headNav_right').style.backgroundImage = "url(images/nav_red_left.jpg)";
    document.getElementById('headNav_left').style.backgroundImage = "url(images/nav_red_right.jpg)";
    document.getElementById('aboutTxt').innerHTML = "<h1>Custom PC Building</h1><p> We can build any type of PC to suit your needs as a gamer, business professional, photographer, movie maker, or any other profession you can think of. </p>";
}
function btnCustomPCOut() {
    document.getElementById('btnCustomPC').src = "images/content_customPCReg.jpg";
    document.getElementById('about').style.backgroundImage = "url(images/content_about_bg_yellow.jpg)";
    document.getElementById('aboutTxt').style.backgroundImage = "url(images/ghzLogo_about_yellow.jpg)";
    document.getElementById('header').style.backgroundImage = "url(images/motto_header_yellow.jpg)";
    document.getElementById('headNav_right').style.backgroundImage = "url(images/nav_yellow_left.jpg)";
    document.getElementById('headNav_left').style.backgroundImage = "url(images/nav_yellow_right.jpg)";
    document.getElementById('aboutTxt').innerHTML = infoBlurb;
}