$(document).ready(function () {
    // Handler for .ready() called.
    $(function () {
        $('img[data-hover]').hover(function () {
            $(this).attr('tmp', $(this).attr('src')).attr('src', $(this).attr('data-hover')).attr('data-hover', $(this).attr('tmp')).removeAttr('tmp');
        }).each(function () {
            $('<img />').attr('src', $(this).attr('data-hover'));
        }); ;
    });
});
function checkNumber(value) {
    var anum = /(^\d+$)|(^\d+\.\d+$)/
    if (anum.test(Math.abs(value)))
        return true;
    return false;
}
function convert() {
    var degreeC = document.getElementById("degreeC");
    var degreeF = document.getElementById("degreeF");
    if (degreeC.value == '' && degreeF.value == '') {
        alert("Please enter a value into either the Celcius or Fahrenheit field. For instance if you want to convert Celcius to Fahrenheit, enter a value into the Celcius field and click on calculate.")
    } else if (degreeC.value == '') {
        if (checkNumber(degreeF.value)) {
            var f =degreeF.value;
            degreeC.value = Math.round((f - 32) / 1.8);
        } else {
            alert("The Fahrenheit value that you entered is not a number. Please put in a number and try again.");
        }
    } else if (degreeF.value == '') {
        if (checkNumber(degreeC.value)) {
            var c = degreeC.value;
            degreeF.value = Math.round((c * 1.8) + 32);
        } else {
            alert("The Celcius value that you entered is not a number. Please put in a number and try again.");
        }
    }
}
function MM_findObj(n, d) { //v4.01
    var p, i, x; if (!d) d = document; if ((p = n.indexOf("?")) > 0 && parent.frames.length) {
        d = parent.frames[n.substring(p + 1)].document; n = n.substring(0, p);
    }
    if (!(x = d[n]) && d.all) x = d.all[n]; for (i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
    for (i = 0; !x && d.layers && i < d.layers.length; i++) x = MM_findObj(n, d.layers[i].document);
    if (!x && d.getElementById) x = d.getElementById(n); return x;
}

function MM_preloadImages() { //v3.0
    var d = document; if (d.images) {
        if (!d.MM_p) d.MM_p = new Array();
        var i, j = d.MM_p.length, a = MM_preloadImages.arguments; for (i = 0; i < a.length; i++)
            if (a[i].indexOf("#") != 0) { d.MM_p[j] = new Image; d.MM_p[j++].src = a[i]; } 
    }
}

function MM_swapImgRestore() { //v3.0
    var i, x, a = document.MM_sr; for (i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++) x.src = x.oSrc;
}

function MM_swapImage() { //v3.0
    var i, j = 0, x, a = MM_swapImage.arguments; document.MM_sr = new Array; for (i = 0; i < (a.length - 2); i += 3)
        if ((x = MM_findObj(a[i])) != null) { document.MM_sr[j++] = x; if (!x.oSrc) x.oSrc = x.src; x.src = a[i + 2]; }
}