Disable/enable icon.gif

viki1967

263 Contributor

Disable/enable icon.gif

Hi all.

I have this form in the page.htm:

Expand|Select|Wrap|Line Numbers

 
<form action="form.asp" method="post" onsubmit="return(validateForm(this));">
 
<select size="1" name="t_im" onchange="Form()">

<option value="">Select value</option>

<option value="A">A</option>

<option value="C">C</option>

<option value="Ca">Ca</option>

<option value="Cav">Cav</option>

</select>
 
<input type="text" name="e_gu" size="10" readonly>           

<a href="javascript:Form()">

<img src="icon_1.gif" border="0"></a>
 
<select size="1" name="c_fu">

<option value="">Select value</option>

<option value="YES">YES</option>

<option value="NO">NO</option>

</select>
 
<input type="text" name="c_ma" size="10" readonly>           

<a href="javascript:Form()">

<img src="icon_2.gif" border="0"></a>
 
</form>

I need:

1) If select name="t_im" value is NULL ( "" ) disable icon_1.gif
2) If select name="t_im" value NOT is NULL ( "" ) enable icon_1.gif

3) If select name="c_fu" value is NULL ( "" ) OR value is "YES" disable icon_2.gif
4) If select name="c_fu" value is "NO" enable icon_2.gif

Can you help me ?
kind regards
viki

Aug 28 '08 #1

Subscribe Reply

5090

RamananKalirajan

608

Contributor

Wether u need it as disabled or hidden.

Regards
Ramanan Kalirajan

Aug 28 '08 #2

viki1967

263

Contributor

Wether u need it as disabled or hidden.

Regards
Ramanan Kalirajan

I need disabled.
thanks x your reply
viki

Aug 28 '08 #3

RamananKalirajan

608

Contributor

I need disabled.
thanks x your reply
viki

just check, the selected value in the function. Give id to each and every object u use. Here is an example code

[HTML]<html>
<head>
<script type="text/javascript">
function doThis()
{
//alert("hai");
var x = document.getEle mentById('mySel ect').selectedI ndex;
alert(document. getElementById( 'mySelect').opt ions[x].value);
if(document.get ElementById('my Select').option s[x].value<1)
document.getEle mentById('myImg ').disabled=tru e;
}
</script>
</head>
<select id="mySelect" size="10" onclick="doThis ()">
<option value="0">Selec t a Value</option>
<option value="1">Selec t 1 Value</option>
<option value="2">Selec t 2 Value</option>
<option value="3">Selec t 3 Value</option>
</select>
<br/><br/><br/>
<img src="demo.jpg" id="myImg">
</html>
[/HTML]

By using this code I cant see the image disabling, same replaced by a text box is working. I hope disable property is not supported for Img. Instead of disabling u can use hidden property (my suggestion).

Regards
Ramanan Kalirajan

Aug 28 '08 #4

viki1967

263

Contributor

Sorry buy your example not working in my case:

Expand|Select|Wrap|Line Numbers

 <html>
 
<head>

<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
 
<script type="text/javascript">

function doThis()

{
 
    var x = document.getElementById('mySelect').selectedIndex;  

    alert(document.getElementById('mySelect').options[x].value); 
 
    if(document.getElementById('mySelect').options[x].value < 1)

       document.getElementById('myImg').disabled=true;

}

</script>
 
</head>
 
<body>
 
<form action="form.asp" method="post" onsubmit="return(validateForm(this));">
 
<select id="mySelect" size="1" name="t_im" onchange="Form()" onclick="doThis()">

<option value="">Select value</option>

<option value="A">A</option>

<option value="C">C</option>

<option value="Ca">Ca</option>

<option value="Cav">Cav</option>

</select>
 
<input type="text" name="e_gu" size="10" readonly>           

<a href="javascript:Form()">

<img id="myImg" src="icon_1.gif" border="0"></a>
 
<select size="1" name="c_fu">

<option value="">Select value</option>

<option value="YES">YES</option>

<option value="NO">NO</option>

</select>
 
<input type="text" name="c_ma" size="10" readonly>           

<a href="javascript:Form()">

<img src="icon_2.gif" border="0"></a>
 
</form>
 
</body>
 
</html>

Aug 28 '08 #5

viki1967

263

Contributor

Sorry buy your example not working in my case:

Expand|Select|Wrap|Line Numbers

 <html>
 
<head>

<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
 
<script type="text/javascript">

function doThis()

{
 
    var x = document.getElementById('mySelect').selectedIndex;  

    alert(document.getElementById('mySelect').options[x].value); 
 
    if(document.getElementById('mySelect').options[x].value < 1)

       document.getElementById('myImg').disabled=true;

}

</script>
 
</head>
 
<body>
 
<form action="form.asp" method="post" onsubmit="return(validateForm(this));">
 
<select id="mySelect" size="1" name="t_im" onchange="Form()" onclick="doThis()">

<option value="">Select value</option>

<option value="A">A</option>

<option value="C">C</option>

<option value="Ca">Ca</option>

<option value="Cav">Cav</option>

</select>
 
<input type="text" name="e_gu" size="10" readonly>           

<a href="javascript:Form()">

<img id="myImg" src="icon_1.gif" border="0"></a>
 
<select size="1" name="c_fu">

<option value="">Select value</option>

<option value="YES">YES</option>

<option value="NO">NO</option>

</select>
 
<input type="text" name="c_ma" size="10" readonly>           

<a href="javascript:Form()">

<img src="icon_2.gif" border="0"></a>
 
</form>
 
</body>
 
</html>

Aug 28 '08 #6

RamananKalirajan

608

Contributor

Sorry buy your example not working in my case:

Expand|Select|Wrap|Line Numbers

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">

<script type="text/javascript">

function doThis()

{

    var x = document.getElementById('mySelect').selectedIndex;

    alert(document.getElementById('mySelect').options[x].value);

    if(document.getElementById('mySelect').options[x].value < 1)

       document.getElementById('myImg').disabled=true;

}

</script>

</head>

<body>

<form action="form.asp" method="post" onsubmit="return(validateForm(this));">

<select id="mySelect" size="1" name="t_im" onchange="Form()" onclick="doThis()">

<option value="">Select value</option>

<option value="A">A</option>

<option value="C">C</option>

<option value="Ca">Ca</option>

<option value="Cav">Cav</option>

</select>

<input type="text" name="e_gu" size="10" readonly>

<a href="javascript:Form()">

<img id="myImg" src="icon_1.gif" border="0"></a>

<select size="1" name="c_fu">

<option value="">Select value</option>

<option value="YES">YES</option>

<option value="NO">NO</option>

</select>

<input type="text" name="c_ma" size="10" readonly>

<a href="javascript:Form()">

<img src="icon_2.gif" border="0"></a>

</form>

</body>

</html>

In the if condition u have kept the value as 1 itself change for ur value and try it out. But the thing I am not able to diable an image. Just try hiding it

Regards
Ramanan Kalirajan

Aug 28 '08 #7

acoder

16,027

Recognized Expert Moderator MVP

By disabling, do you mean that you want to disable the link?

Aug 28 '08 #8

viki1967

263

Contributor

By disabling, do you mean that you want to disable the link?

Yes, I disable the link href.

Aug 28 '08 #9

viki1967

263

Contributor

This is my solution on the problem, check please:

Expand|Select|Wrap|Line Numbers

  
<html>
 
<head>

<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
 
<script type="text/javascript">
 
function CheckIcon1(ss){

    var ok=false

    if(ss.options[ss.selectedIndex].value==''){

        document.getElementById('icon1').onclick=Function('return false')

        document.getElementById('img_icon1').src='icon_1.gif'

    }

    else{

        document.getElementById('icon1').onclick=Function('return true')

        document.getElementById('img_icon1').src="icon_2.gif'

        ok=true

    }

    return ok

}
 
function CheckIcon2(ss){

    var ok=false

    if(ss.options[ss.selectedIndex].value=='NO'){

        document.getElementById('icon2').onclick=Function('return true')

        document.getElementById('img_icon2').src='icon_1.gif'

        ok=true

    }

    else{

        document.getElementById('icon2').onclick=Function('return false')

        document.getElementById('img_icon2').src='icon_2.gif'

    }

    return ok

}
 
function Form(theUrl, percSize) 
 
{
 
var width = 400; 

var height = 200; 

var left = Math.floor((screen.width-width)/2); 

var top = Math.floor((screen.height-height)/2); 
 
  window.open(theUrl,'popup','width='+width+',height='+height+',top='+top+',left='+left);
 
}
 
</script>
 
</head>
 
<body>
 
<form action="form.asp" method="post">
 
<select size="1" name="t_im" onchange="if(CheckIcon1(this))Form('test.htm', '');">

<option value="">Select value</option>

<option value="A">A</option>

<option value="C">C</option>

<option value="Ca">Ca</option>

<option value="Cav">Cav</option>

</select>
 
<input type="text" name="e_gu" size="10" readonly>           

<a id="icon1" href="javascript:Form('test.htm')" onclick="return false">

<img id="img_icon1" src="icon_1.gif" border="0"></a>
 
<select size="1" name="c_fu" onchange="CheckIcon2(this);">

<option value="">Select value</option>

<option value="YES">YES</option>

<option value="NO">NO</option>

</select>
 
<input type="text" name="c_ma" size="10" readonly>           

<a id="icon2" href="javascript:Form('test.htm')" onclick="return false">

<img id="img_icon2" src="icon_2.gif" border="0"></a>
 
</form>
 
</body>
 
</html>

Aug 28 '08 #10

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