function CheckArt () { 
    var errorMsg = "";
    
    if (document.art.artName.value == "") {
        errorMsg += "- Art Title/Name\n";    
    }

    if (document.art.artistID.value == "") {
        errorMsg += "- Artist\n";    
    }

    if (document.art.category1ID.value == "") {
        errorMsg += "- Category 1\n";   
    }

    if (document.art.category2ID.value == "") {
        errorMsg += "- Category 2\n";   
    }

    if (document.art.description.value == "") {
        errorMsg += "- Description\n";   
    }

    if (document.art.price.value == "") {
        errorMsg += "- Price\n";   
    }

    if (document.art.size.value == "") {
        errorMsg += "- Size\n";   
    }

    if (document.art.featured.value == "") {
        errorMsg += "- Featured\n";   
    }

    if (document.art.region.value == "") {
        errorMsg += "- Region\n";   
    }

    if (document.art.century.value == "") {
        errorMsg += "- Century\n";   
    }

    if (errorMsg != "") {
        alert("Please complete the following fields.\n" + errorMsg);
        return false;
    }

    return true;
}


function CheckSearch () { 
    var errorMsg = "";
    
    if ((document.art.city.value == "") && (document.art.state.value == "") && (document.art.zip.value == "") && (document.art.propType.value == "")) {
        alert("Please enter at least one search field.\n");
        return false;
    }

    return true;
}


function CheckCategory () { 
    var errorMsg = "";
    
    if (document.category.name.value == "") {
        alert("Please enter a name.\n" + errorMsg);
        return false;
    }

    return true;
}


function CheckArtist () { 
    var errorMsg = "";
    
    if (document.artist.name.value == "") {
        alert("Please enter artist name.\n" + errorMsg);
        return false;
    }

    if (document.artist.bio.value == "") {
        alert("Please enter artist bio.\n" + errorMsg);
        return false;
    }

    return true;
}


function CheckLogin () { 
    var errorMsg = "";

    if ((document.login.Email.value == "") || (document.login.Email.value.length > 0 && (document.login.Email.value.indexOf("@",0) == - 1 || document.login.Email.value.indexOf(".",0) == - 1))) {
            errorMsg += "\nPlease enter your valid email address.\n";
    }

    if (document.login.Pw.value == "") {
        errorMsg += "\nPlease enter your password.\n"; 
    }

        if (errorMsg != "") {
        errorMsg += alert(errorMsg + "\n\n");
        return false;
    }

    return true;
}