JavaScript Examples Bible - UserWorks Technologies

dynsrc
Chapter 6 ✦ Image, Area, and Map Objects (Chapter 22)
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓ ✓
Example
To swap between still and video sources, simply empty the opposite property.
Listing 22-3 shows a simplified example that swaps between one fixed image and
one video image. This listing exhibits most of the bugs associated with changing
between static image and video sources described in the text.
Listing 22-3: Changing Between Still and Motion Images
IMG dynsrc Property
var trainImg = new Image(160,120)
trainImg.src = “amtrak.jpg”
trainImg.dynsrc = “amtrak.mpg”
function setLoop() {
var selector = document.forms[0].looper
document.myIMG.loop = selector.options[selector.selectedIndex].value
}
function setImage(type) {
if (type == “jpg”) {
document.myIMG.dynsrc = “”
document.myIMG.src = trainImg.src
} else {
document.myIMG.src = “”
document.myIMG.start = “fileopen”
setLoop()
document.myIMG.dynsrc = trainImg.dynsrc
}
}
IMG dynsrc Property
Choose image type:
Still
Continued
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IMG.dynsrc