vinpkl
September 18, 2012, 12:16pm
1
hi
i have 10 input fields.
i want to change background image of the input fields onfocus event
My code is not working
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<Script type="text/javascript">
function changeBG(input){
input.style.backgroundImage = URL('images/logininput_focus_bg');
}
</Script>
</head>
<body>
<form>
<input type="text" onfocus="changeBG{input);" />
</form>
</body>
</html>
vineet
input is an undefined variable, when passing in the argument for changeBG you need to supply it with the keyword “this ” which is a reference to the current element object. See the below:
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<script type="text/javascript">
function changeBG(input) {
input.style.backgroundImage = 'url(images/logininput_focus_bg)';
}
</script>
</head>
<body>
<form>
<input type="text" onfocus="changeBG(this);" />
</form>
</body>
</html>
vinpkl
September 18, 2012, 1:12pm
3
hi chris
i uploaded your example but it didnt worked for me
http://wdpixels.com/stuff/changebg.html
this is the background image
http://wdpixels.com/stuff/logininput_focus_bg.gif
vineet
Sorry, I actually just noticed a typo in your original code that I didn’t see before.
The above should work fine now.
vinpkl
September 18, 2012, 1:24pm
5
hi chris
yes its working now.
But what did you changed in the above code, i am not able to relate.
vineet
vinpkl
September 18, 2012, 1:30pm
6
was it the .gif extension
vinpkl
September 18, 2012, 1:42pm
7
Thanks a lot
works perfect for my form
vineet