Image sizing in behavior swap

my question concerning image size with using swap in dreamweaver. I am putting up a gallery and using the swap feature. I have the thumbnails but my images are different sizes that swap out to a div.
So the skinny images stretch out to fill the space.
I thought I read I could apply a size to the image within the code, but I don't know where it would go.
here is a sampe of the script
<a href="javascript:;" onmouseover="MM_swapImage('large','','draw/Images/DancingEmeritus03_9x12.jpg',1)">
<img src="draw/thumbnails/dancing-emeritus-opp.jpg" width="47" height="75" border="0" /></a></td>
I want the first image, the large one, to be -- width="94" height="150" --- within a div that is 200 x200pixels -
For some of the images I have gone back to Photoshop and backed the images with a larger canvas that fits the size
So the image is now 200 x200---But can I do with coding for the images? I want each image to be 100% within the div.
I hope this is the right thread location- first time here...thanks Julia

I want each image to be 100% within the div.
If that is the case, then the images will stretch (asymmetrically) to fit that space. If you don't specify the width and height, the browser will do the right thing.
With a string of images, it is usually better to have a common dimension (sizing the images in PS) so that all images are, say, 200px wide OR 200px high. but NOT both.
Barry

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Exporting photos for UHDTV or Native 4K TV, what are the best settings ? (File: Quality File: Color Space, Image Sizing and resolution) Or in other words; How can I get the smallest files but keep good quality for display on new UHDTV

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Lr always uses three decimals for dimensions in the export dialog. So 22 cm is exactly the same as 22,000 cm.
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For awhile, I was exporting images at dimensions of 960x636 with no issues. All of a sudden, when I use the export feature, and put in the Image Sizing section the 960x636 resolution, the exported file is at a resolution of 956x636 and therefore is not the same size as previously exported photos. I've tried changing some of the settings in the Image Sizing section (check/uncheck Don't Enlarge, Dimensions vs. Width & Height, etc.) and nothing seems to work. Any advice why LR3 is overriding my image size settings would be greatly appreciated.

When you specify the width and height on export, you are specifying a "box" that Lightroom will fit the image into. It will do the best it can, but if your cropped image doesn't have the same aspect ratio as the "box", then one dimension will be short. As an example, if you had cropped your picture into a square, how could Lightroom possibly completely fill a rectangle with it?
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Assuming that LR is working to only 3 decimal places here, which indications discussed in another thread would suggest, then there are several ways to achieve that:
truncate down to 0.415 by discarding the subsequent digits
"quick-rounding" of the third digit by inspecting the fourth-place digit only, and incrementing the third-place digit when the fourth-place digit is larger than 5, which it is not in this case, resulting in 0.415
"math-rounding" by inspecting all of the following digit pairs in turn, until you reach a pair that is lower than 50, and then working back again to simplify. This procedure rounds 0.41558 up to 0.4156, then after doing that, rounds 0,4156 up to 0.416
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Image sizing in behavior swap

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