function tips() {
};

tips = new tips();
number = 0;

// tipsArray
tips[number++] = "Sharpen skates as soon as they are purchased."
tips[number++] = "We recommend pre-school skaters wear helmets with a face mask."
tips[number++] = "Re-sharpen skates after approximately 30 hours of skating (depending on usage and care)."
tips[number++] = "With respect to figure skates, the bottom toe pick should not be removed.  The pick is part of the design of figure skates and is essential to proper balance."
tips[number++] = "Nothing can ruin a pair of new skates faster than a poor blade sharpening. Make sure you are using a reputable skate sharpener. Ask your coach for a recommendation."
// keep adding items here...

increment = Math.floor(Math.random() * number);