<form ....>
<table border="1" celpadding="0" celspacing="0" width="100%"><input type="text" name="it1" value=""><br><input type="text" name="it2" value=""><br><input type="text" name="it3" value=""><br><tr>
                        <td width="30" align="right" class="lines"> 1 </td>
                        <td width="100"><input type="text" name="items[0][material]" id="items[0][material]" size="50" value="111"/></td>

                        <td width="16"><a title="Матерял" href="javascript:openMatirials('sid=db3a76087e1917af522b9699d96195cc', 'card', 'items[0][material]')"><img src="img/add.jpg" alt="Calendar" border="0"/></a></td>
                        <td><input type="text" name="items[0][price]" id="items[0][price]" value="0"></td>
                        <td><input type="text" name="items[0][count]" id="items[0][count]" value="0"></td>
                      </tr>
<tr>
                        <td width="30" align="right" class="lines"> 2 </td>
                        <td width="100"><input type="text" name="items[1][material]" id="items[1][material]" size="50" value="111"/></td>
                        <td width="16"><a title="Матерял" href="javascript:openMatirials('sid=db3a76087e1917af522b9699d96195cc', 'card', 'items[1][material]')"><img src="img/add.jpg" alt="Calendar" border="0"/></a></td>
                        <td><input type="text" name="items[1][price]" id="items[1][price]" value="0"></td>

                        <td><input type="text" name="items[1][count]" id="items[1][count]" value="0"></td>
                      </tr>
</table>
.....
</form>

function openMatirials(params, form, field) {
    window.open("materials.php?" + params, "calendar", "width=500,height=400,status=yes,scrollbars=yes");
    matField = eval("document." + form + "." + field);
}

function returnMaterial(d) {
    window.opener.matField.value = d;
    window.close();
}