// preload these images
imgFiles = new Array("http://www.njoydesigns.com/i/nav_home_2.gif","http://www.njoydesigns.com/i/nav_products_2.gif","http://www.njoydesigns.com/i/nav_wheretofindus_2.gif","http://www.njoydesigns.com/i/nav_contact_2.gif","http://www.njoydesigns.com/i/nav_emaillist_2.gif","http://www.njoydesigns.com/i/nav_blog_2.gif","http://www.njoydesigns.com/i/nav_press_2.gif","http://www.njoydesigns.com/i/nav_sale_2.gif");
preloadArray = new Array();
		
for (var jj=0; jj < imgFiles.length; jj++)
{
	preloadArray[jj] = new Image;
	preloadArray[jj].src = imgFiles[jj];
}

function swap(obj) {
    obj.style.backgroundImage = "url(http://www.njoydesigns.com/i/nav_" + obj.parentNode.parentNode.id + "_2.gif)";
}
function unswap(obj) {
    obj.style.backgroundImage = "url(http://www.njoydesigns.com/i/nav_" + obj.parentNode.parentNode.id + ".gif)";
}


//swatch click chooses select pull-down
function choose(obj) {
    document.getElementById("item_number").value = obj.id;
}


//form validation
function checkAtC() {

    //check the quantity
    var qty = document.getElementById("quantity").value;
    if ((qty.match(/^\d+$/) == null) || (qty == 0)) {
        alert("You should probably be ordering more than zero products.  Just sayin'.");
        return false;
    }
    
    //check that there was a style chosen
    if (document.getElementById("item_number").value == "") {
        alert("In which color would you like this?");
        return false;
    }

}



//mailing list submit   
function voodoo(id) {
    var email = document.getElementById(id).value;
    if (email.match(/^[\w-\.\-_]+((-\w+)|(\.\w+))*\@\w+((\.|-)\w+)*\.\w+$/) == null) {
        alert("Your e-mail address doesn't look quite right.  Try again.");
	    return false;
	}	
	return true;
}