Setting the src = to a function 1

aTekTipsUser · Jul 28, 2005

Is it possible to set the src (in the img tag) = to a function or even a variable.

Instead of setting <img src = "\imgLocation.jpg"> is it possible to set it = to a function or variable.

I tried setting up a javascript function getPath, and in the img tag setting the src = "getPath();".

I want to set up a global folder path, then concatenate the file name. This way, it would ease the task of changing folder locations. Thanks!

tsdragon · Jul 28, 2005

I don't think that will work, but you CAN use a javascript function to set the src for an image. You just have to call the function from the body onload event or something similar:

Code:

function getPath() {
  // do what you need to get the path here
  document.getElementById("imgTag").src = pathVar;
}
 .
 .
 .
<body onload="getPath();">
 .
 .
 .
<img id="imgTag" src="">

Tracy Dryden

Meddle not in the affairs of dragons,
For you are crunchy, and good with mustard. [dragon]

kaht · Jul 28, 2005

Do you want to set it dynamically, or only at run time? If it's set at run time (which your question implies) try this:

Code:

<script language="javascript">
document.write('<img src = "' + getPath() + '">'
</script>

-kaht

...looks like you don't have a job, so why don't you get out there and feed Tina.

kaht · Jul 28, 2005

BTW, you would embed my code right where your old <img> tag was

-kaht

...looks like you don't have a job, so why don't you get out there and feed Tina.

aTekTipsUser · Jul 28, 2005

Thanks for the reply!

I tried embedding the code <script language=javascript>document.write('<img src = "' + getPath() + '">')</script> where my old <img> tag was, but it does not recognize. I tried hard coding the src path and it still doesn't recognize <script language=javascript>document.write('<img src = "test.jpg">')</script>. When I take out the document.write it works. document.write('Test') will write correct.

tgreer · Jul 28, 2005

What doctype are you using? Certain doctypes will enforce syntax on quoting attributes, and so on. "document.write()" is deprecated in some of the newer doctypes, as well.

Thomas D. Greer

Providing PostScript & PDF
Training, Development & Consulting

aTekTipsUser · Jul 28, 2005

Your code was good. Thanks! I was referencing a server with the syntax \\servername\path.jpg and it worked when I entered it as <img src=\\servername\path.jpg> but when I used the document.write, it didn't work. I fixed it by putting file://serverName/path.jpg.

Your help is much appreciated. It will save much time!

aTekTipsUser · Jul 28, 2005

Would it be possible to pull out of the Web.config ConfigurationSettings in javascript? In my asp.net code I just refer to it ConfigurationSettings.AppSettings("Path").

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Setting the src = to a function 1

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