function addHTTP(element) {
    if (element.value != "") {
        if (!element.value.match(/^\w+:\/\//) && !element.value.match(/^\^/) && !element.value.match(/^\//)) {
            element.value = "http://"+element.value;
        }
        if (!element.value.match(/^\w+:\/\/.+\..+/) && !element.value.match(/^\^/) && !element.value.match(/^\//)){
            alert("That does not look like a proper URL. Please check if it is correct.");
        }
    }
}