Hello all,
I'm trying to limit the file size to 1 meg on upload of image files and I am
trying a script from javascript internet, but it is giving me errors on IE
˛ is null or not an object ł and isnąt checking the file size or preventing
the upload.
ERROR IS <<<<Śthis.form. uploadfile.valu e˛ is null or not an object on this
line:
<input type="submit" name="Submit" value="Submit this Information"
accesskey="7" onclick="LimitA ttach(this.form , this.form.uploa dfile.value)" > http://www.sell-my-diamonds.com/submit.php
This is the script: <!-- TWO STEPS TO INSTALL IMAGE UPLOAD PREVIEW:
1. Copy the coding into the HEAD of your HTML document
2. Add the last code into the BODY of your HTML document -->
<!-- STEP ONE: Paste this code into the HEAD of your HTML document -->
<HEAD>
<script type="text/javascript">
<!-- Begin
/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Abraham Joffe :: http://www.abrahamjoffe.com.au/ */
/***** CUSTOMIZE THESE VARIABLES *****/
// width to resize large images to
var maxWidth=500;
// height to resize large images to
var maxHeight=500;
// valid file types
var fileTypes=["bmp","gif","pn g","jpg","jp eg"];
// the id of the preview image tag
var outImage="previ ewField";
// what to display when the image is not valid
var defaultPic="spa cer.gif";
/***** DO NOT EDIT BELOW *****/
function preview(what){
var source=what.val ue;
var
ext=source.subs tring(source.la stIndexOf(".")+ 1,source.length ).toLowerCase() ;
for (var i=0; i<fileTypes.len gth; i++) if (fileTypes[i]==ext) break;
globalPic=new Image();
if (i<fileTypes.le ngth) globalPic.src=s ource;
else {
globalPic.src=d efaultPic;
alert("THAT IS NOT A VALID IMAGE\nPlease load an image with an extention
of one of the following:\n\n" +fileTypes.join (", "));
}
setTimeout("app lyChanges()",20 0);
}
var globalPic;
function applyChanges(){
var field=document. getElementById( outImage);
var x=parseInt(glob alPic.width);
var y=parseInt(glob alPic.height);
if (x>maxWidth) {
y*=maxWidth/x;
x=maxWidth;
}
if (y>maxHeight) {
x*=maxHeight/y;
y=maxHeight;
}
field.style.dis play=(x<1 || y<1)?"none":"" ; <<<<<<<<< ERROR OBJECT REQUIRED
char 3
field.src=globa lPic.src;
field.width=x;
field.height=y;
}
// End -->
</script>
</HEAD>
<!-- STEP TWO: Copy this code into the BODY of your HTML document -->
<BODY>
<div align="center" style="line-height: 1.9em;">
Test it by locating a valid file on your hard drive:
<br>
<input type="file" id="picField" onchange="previ ew(this)">
<br>
<img alt="Graphic will preview here" id="previewFiel d" src="spacer.gif ">
<br> <div style="font-size: 7pt;">
~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing http://www.PetersonSales.com 3  13119 
On 6/30/06 9:06 PM, in article C0************* **********@hotm ail.com,
"Jefferis NoSpamme" <je********@hot mail.com> wrote: Hello all,
I'm trying to limit the file size to 1 meg on upload of image files and I am
trying a script from javascript internet, but it is giving me errors on IE ˛
is null or not an object ł and isnąt checking the file size or preventing the
upload.
ERROR IS <<<<Śthis.form. uploadfile.valu e˛ is null or not an object on this
line:
<input type="submit" name="Submit" value="Submit this Information"
accesskey="7" onclick="LimitA ttach(this.form , this.form.uploa dfile.value)" >
http://www.sell-my-diamonds.com/submit.php
I found that the error on the form was due to using a function from another
script which didnąt belong on this form.
However, There is no file checking for size in the script. Does this have to
be done server side?
Jeff
~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing http://www.PetersonSales.com
Jefferis NoSpamme wrote: [...]
I found that the error on the form was due to using a function from another
script which didnąt belong on this form.
However, There is no file checking for size in the script. Does this haveto
be done server side?
Yes - there's no other way than doing the whole upload, and then let
the programme that parses the input perform the check on file size.
--
Bart
On 7/1/06 4:49 AM, in article 11************* *********@m79g2 00...legr oups.com, "Bart Van der Donck"
<ba**@nijlen.co m> wrote: Yes - there's no other way than doing the whole upload, and then let
the programme that parses the input perform the check on file size.
--
Bart
Thanks
Jeff
~~~~~~~~~~~~
Jefferis Peterson, Pres.
Web Design and Marketing http://www.PetersonSales.com
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