Originariamente inviato da pietro09
Prova questo: è un esercizio su jquery
codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>

    <script type="text/javascript" src="../js/jquery/jquery-1.2.6.pack.js"></script>

    <script language="javascript" type="text/javascript">
// <!CDATA[
$(document).ready(function() 
        {
            //qui ci va il codice da eseguire alla lettura documento
            seleziona_righe();            
            
        }
    );

function seleziona_righe()
{
    var v = $("#table1 tr").find("td:eq(0)");
    for(var i = 0; i < v.length; i++)
    {
        if(parseInt($(v[i]).text()) > 10)
        {
            $(v[i])
                .css({border:'4px red solid', 'color':'yellow', 'font-weight':'bold'})
                .parent("tr").css("background","gray");
        }
    
    }

}


// ]]>
</script>

</head>
<body>
    <table id="table1" style="text-align: left; width: 100%;" border="1" cellpadding="2" cellspacing="2">
        <caption>
            prova</caption>
        <tbody>
            <thead>
                <th>
                    primo
                </th>
                <th>
                    secondo
                </th>
                <th>
                    terzo
                </th>
            </thead>
            <tr>
                <td>
                    1
                </td>
                <td>
                    a
                </td>
                <td>
                    1
                </td>
            </tr>
            <tr>
                <td>
                    2
                </td>
                <td>
                    b
                </td>
                <td>
                    325
                </td>
            </tr>
            <tr>
                <td>
                    4
                </td>
                <td>
                    c
                </td>
                <td>
                    2
                </td>
            </tr>
            <tr>
                <td>
                    9
                </td>
                <td>
                    d
                </td>
                <td>
                    5
                </td>
            </tr>
            <tr>
                <td>
                    15
                </td>
                <td>
                    e
                </td>
                <td>
                    910
                </td>
            </tr>
            <tr>
                <td>
                    18
                </td>
                <td>
                    f
                </td>
                <td>
                    36
                </td>
            </tr>
            <tr>
                <td>
                    22
                </td>
                <td>
                    g
                </td>
                <td>
                    12
                </td>
            </tr>
            <tr>
                <td>
                    35
                </td>
                <td>
                    h
                </td>
                <td>
                    123
                </td>
            </tr>
            <tr>
                <td>
                    26
                </td>
                <td>
                    i
                </td>
                <td>
                    33
                </td>
            </tr>
            <tr>
                <td>
                    5
                </td>
                <td>
                    l
                </td>
                <td>
                    25
                </td>
            </tr>
            <tr>
                <td>
                    6
                </td>
                <td>
                    m
                </td>
                <td>
                    68
                </td>
            </tr>
            <tr>
                <td>
                    11
                </td>
                <td>
                    n
                </td>
                <td>
                    65
                </td>
            </tr>
        </tbody>
    </table>
</body>
</html>
funziona perfettamente!!!1

mille grazie

questo jquery è veramente eccezionale!!!

grazie ancora, gentilissimo