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Tag select, input - onchange
Hello,
I would like to use javascript to four html tags "select". Two tags are a couple. So, I have two couple of tag "select".
I want to count each couple of tag "select". I dont know how exactly to explain it . I hope that my code help you to understand.
When I select all 4 " tags select" I will see two numbers in "tag input"
PHP Code:
$max = 8; // eg
echo "<form action='' method='post' name='form1'>";
echo "<tr><td align='right'><select name='vys1_map1' class='textbox'>";
for($i=0; $i<=$max; $i++)
echo"<option value='".$i."'>".$i."</option>";
echo"</select></td>";
echo "<td align='left'><select name='vys2_map1' class='textbox'>";
for($i=0; $i<=$max; $i++)
echo"<option value='".$i."'>".$i."</option>";
echo"</select></td></tr>";
echo "<tr><td align='right'><select name='vys1_map2' class='textbox'>";
for($i=0; $i<=$max; $i++)
echo"<option value='".$i."'>".$i."</option>";
echo"</select></td>";
echo "<td align='left'><select name='vys2_map2' class='textbox'>";
for($i=0; $i<=$max; $i++)
echo"<option value='".$i."'>".$i."</option>";
echo"</select></td></tr>";
$number1 = $_POST['vys1_map1'] + $_POST['vys1_map2'];
$number2 = $_POST['vys2_map1'] + $_POST['vys2_map2'];
echo "<input type='text' name='vysledok1' value='$number1'>
<input type='text' name='vysledok2' value='$number1'>
</form>";
Thanks for your time.
PS: Sorry for my bad English 
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PHP Code:
<?php
$output = '<!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>how to loop the chain select box</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
<!--
div#main{text-align:center;padding-top:100px;}
input{text-align:center;}
-->
</style>
<script type="text/javascript">
<!--
function initForm(){
var frm = document.forms["form1"];
var m1_1 = frm.elements["vys1_map1"],
m1_2 = frm.elements["vys1_map2"],
m2_1 = frm.elements["vys2_map1"],
m2_2 = frm.elements["vys2_map2"],
inp_1 = frm.elements["vysledok1"],
inp_2 = frm.elements["vysledok2"];
m1_1.onchange = function(){inp_1.value = parseInt(this.value) + parseInt(m1_2.value);this.blur();}
m1_2.onchange = function(){inp_1.value = parseInt(this.value) + parseInt(m1_1.value);this.blur();}
m2_1.onchange = function(){inp_2.value = parseInt(this.value) + parseInt(m2_2.value);this.blur();}
m2_2.onchange = function(){inp_2.value = parseInt(this.value) + parseInt(m2_1.value);this.blur();}
}
window.onload = initForm;
//-->
</script>
</head>
<body>
<div id="main">
';
$max = 8; // eg
$output .= "<form action='' method='post' name='form1'>
<table width='50%' align='center' border='0' id='datatable' cellspacing='3' cellpadding='3'>
<tbody>";
$output .= "<tr><td align='right'><select name='vys1_map1' class='textbox'>";
for($i=0; $i<=$max; $i++)
$output .="<option value='".$i."'>".$i."</option>";
$output .="</select></td>";
$output .= "<td align='left'><select name='vys2_map1' class='textbox'>";
for($i=0; $i<=$max; $i++)
$output .="<option value='".$i."'>".$i."</option>";
$output .="</select></td></tr>";
$output .= "<tr><td align='right'><select name='vys1_map2' class='textbox'>";
for($i=0; $i<=$max; $i++)
$output .="<option value='".$i."'>".$i."</option>";
$output .="</select></td>";
$output .= "<td align='left'><select name='vys2_map2' class='textbox'>";
for($i=0; $i<=$max; $i++)
$output .="<option value='".$i."'>".$i."</option>";
$output .="</select></td></tr>";
$number1 = $_POST['vys1_map1'] + $_POST['vys1_map2'];
$number2 = $_POST['vys2_map1'] + $_POST['vys2_map2'];
$output .= "<tr><td colspan='2'><input type='text' size='10' name='vysledok1' value='$number1' />
<input type='text' size='10' name='vysledok2' value='$number1' /></td></tr>
</tbody>
</table>
</form>
</div>
</body>
</html>";
echo $output;
?>
link to the example
use [code]YOUR CODE GOES HERE[/code] or burn in Hell
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Thanks Padonak for your code,
I don`t know writing javascrtips but I solved my problem yesterday. Here is code. Is it the correct ? Because it works.
PHP Code:
echo "<script language='JavaScript' >
<!--
function vypocet_prvy() {
var h1 = document.form1.vys1_map1.value;
var h2 = document.form1.vys1_map2.value;
var num1 = new Number(h1);
var num2 = new Number(h2);
var x = num1 + num2
document.form1.pokus1.value=x;
}
function vypocet_druhy() {
var h1 = document.form1.vys2_map1.value;
var h2 = document.form1.vys2_map2.value;
var num1 = new Number(h1);
var num2 = new Number(h2);
var x = num1 + num2
document.form1.pokus2.value=x;
}
-->
</script>";
echo "
<form action='' method='post' name='form1'>
<table align='center' cellspacing='0' cellpadding='6' border='0' width='70%'>
echo "<tr>\n
<td>test</td>
<td align=center>
<strong>test1</strong>
</td>
<td align=center> <small><em>vs.</em></small> </td>
<td align=center>
<strong>test2</strong>
</td>\n
</tr>
<tr>
<td>tessst</td>
<td align=center colspan=3><span style='color: yellow'><b>test</b></span></td>
</tr>
<tr>
<td><span style='color: yellow'>vysledok</span></td>";
$max = 16;
echo "<td align=right><select name='vys1_map1' class='textbox' onChange='vypocet_prvy()'>";
for($i=0; $i<=$max; $i++)
echo"<option value='".$i."'>".$i."</option>";
echo"</select></td>";
echo "<td align=center> : </td>
<td align=left>
<select name='vys2_map1' class='textbox' style=\"width:100\" onChange='vypocet_druhy()'>";
for($i=0; $i<=$max; $i++)
echo" <option>$i</option>";
echo"</select>
</td>\n
</tr>
<tr>
<tr>
<td>tesssst</td>
<td align=center colspan=3><span style='color: cyan'><b>test23</b></span></td>
</tr>
<tr>
<td><span style='color: cyan'>Vysledok</span></td>
<td align=right>
<select name='vys1_map2' class='textbox' style=\"width:100\" onChange='vypocet_prvy()'>";
for($i=0; $i<=$max; $i++)
echo" <option>$i</option>";
echo"</select>
</td>
<td align=center> : </td>
<td align=left>
<select name='vys2_map2' class='textbox' style=\"width:100\" onChange='vypocet_druhy()'>";
for($i=0; $i<=$max; $i++)
echo" <option>$i</option>";
echo"</select>
</td>\n
</tr>
<tr>
<td colspan=4><b> </b></td>
</tr>
<tr>\n
<td>spolu</td>
<td align=right>";
echo " <input type='text' readonly=\"readonly\" style=\"width: 40px\" class='textbox' name='pokus1'>
</td>
<td align=center><strong> : </strong></td>
<td align=left>
<input type='text' readonly=\"readonly\" style=\"width: 40px\" class='textbox' name='pokus2'>
</td>\n
</tr>
<tr>
<td colspan=4 align=center>
<br>
<input type='button' style='cursor: pointer;' class='button' name='no' value='Späť' onclick='history.go(-1)'>
<input type='submit' name='subm' style='cursor: pointer;' class='button' value='Zapísať Výsledok'>
</td>
</tr>
</table></form>";
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