

<!--Product Specification Functions-->
function productChange(){
document.getElementById("productSubMenu").style.visibility = "visible";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#000000";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}
function productChangeBack(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}
function productSubMenuChange(){
document.getElementById("productSubMenu").style.visibility = "visible";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#000000";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}
function productSubMenuChangeBack(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}


<!--Product Specification Functions-->
function featuresChange(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "visible";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#000000";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}
function featuresChangeBack(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}
function featuresSubMenuChange(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "visible";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#000000";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}
function featuresSubMenuChangeBack(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}


<!--About Us Functions-->
function aboutUsChange(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "visible";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#000000";
}
function aboutUsChangeBack(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}
function aboutUsSubMenuChange(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "visible";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#000000";
}
function aboutUsSubMenuChangeBack(){
document.getElementById("productSubMenu").style.visibility = "hidden";
document.getElementById("featuresSubMenu").style.visibility = "hidden";
document.getElementById("aboutUsSubMenu").style.visibility = "hidden";
document.getElementById("productMenu").style.color = "#CDCCCC";
document.getElementById("featuresMenu").style.color = "#CDCCCC";
document.getElementById("aboutUsMenu").style.color = "#CDCCCC";
}