Javascript: displaying images with onchange event Post: 302925508

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Top Forums Programming Javascript: displaying images with onchange event Post 302925508 by Akshay Hegde on Monday 17th of November 2014 02:56:18 PM

11-17-2014

Moderator

Its due to appendChild, just replace src, validate before append whether div already exists or not

Code:

// Exists alredy then just replace src
if(document.getElementById('YourImagediv')){

  document.getElementById('YourImagediv').src = 'someimage'

}
else{

// create img div and append somewhere

}

OR

remove div before creating something like this

Code:

document.getElementById("some-element").remove()

---------- Post updated at 02:26 AM ---------- Previous update was at 02:02 AM ----------

Modify like this

Code:

function distributionChange() {
var img ;
if(document.getElementById("test"))
{
      img = document.getElementById("test")
}else
{
      img = document.createElement("img");
      img.id = "test"
      img.setAttribute("width", "320");
  document.getElementById("distribution").appendChild(img);
}

  var link = 'http://en.wikipedia.org/wiki/xxx#mediaviewer/File:yyy';

  switch (document.getElementById("distributions").value) 
  {
    case 'normal':
      img.src = link.replace("xxx", "Normal_distribution").replace("yyy", "Normal_Distribution_PDF.svg");
      break;
    case 'lognormal':
      img.src = link.replace("xxx", "Log-normal_distribution").replace("yyy", "Some_log-normal_distributions.svg");
      break;
    default:
      img.src = "Distribution not specified.";
  }

	
}

This link may be helpful Can I use... Support tables for HTML5, CSS3, etc

Akshay Hegde

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LEARN ABOUT DEBIAN

img-bmp

img-bmp(3tk)															      img-bmp(3tk)

NAME

       img-bmp - Img, Windows Bitmap Format (bmp)

SYNOPSIS

       package require Tk

       package require img::bmp  ?1.3?

       image create photo ?name? ?options?

DESCRIPTION

       The  package  img::bmp  is a sub-package of Img. It can be loaded as a part of the complete Img support, via package require Img, or on its
       own, via package require img::bmp.

       Like all packages of Img it does not provide new commands, but extends the existing Tk command image so that it supports  files	containing
       raster images in the Windows Bitmap Format (bmp). More specifically img::bmp extends Tk's photo image type.

       The name of the new format handler is bmp.  This handler does not provide additional configuration options.

       All of the above means that in a call like

       image create photo ?name? ?options?

       [1]    Image data in bmp format (options -data and -file) is detected automatically.

       [2]    The format name bmp is recognized by the option -format.

SEE ALSO

       img-bmp,  img-gif,  img-ico,  img-intro, img-jpeg, img-pcx, img-pixmap, img-png, img-ppm, img-ps, img-sgi, img-sun, img-tga, img-tiff, img-
       window, img-xbm, img-xpm

KEYWORDS

       bmp, image handling, tk

COPYRIGHT

       Copyright (c) 1995-2003 Jan Nijtmans <nijtmans@users.sourceforge.com>

Img									1.3							      img-bmp(3tk)

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img-bmp