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We've tightened up the code by introducing variables in the functions, and put all the component parts in the correct order that they should appear in the document.
<HEAD>
.
.
.
<SCRIPT LANGUAGE="JavaScript">
<!--
ver4 = (document.layers || document.all) ? 1 : 0;
if (document.images) {
arImageSrc = new Array (
"imButdown.gif",
"imButup.gif",
"imButthis.jpg",
.
.
.
"../images/imButthat.jpg" )
arImageList = new Array ();
for (counter in arImageSrc) {
arImageList[counter] = new Image();
arImageList[counter].src = arImageSrc[counter];
}
};
function rollOver(imName,over) {
if (!document.images) {return};
whichIm = document.images[imName];
if (over) { whichIm.src = imName + "over.gif" }
else { whichIm.src = imName + "up.gif" };
}
function rollClick(imName) {
if (!document.images || ver4) {return};
whichIm = document.images[imName];
whichIm.src = imName + "down.gif";
dummy = setTimeout("whichIm.src = \"" + imName + "over.gif\"",100);
}
function rollPress(imName,down) {
whichIm = document.images[imName];
if (down) { whichIm.src = imName + "down.gif" }
else { whichIm.src = imName + "over.gif" }
}
//-->
</SCRIPT>
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</HEAD>
<BODY>
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.
<A HREF="yourlinkgoeshere.html"
onMouseOver = "rollOver('imBut',true)"
onMouseOut = "rollOver('imBut',false)"
onMouseDown = "rollPress('imBut',true)"
onMouseUp = "rollPress('imBut',false)"
onClick = "rollClick('imBut')">
<IMG NAME="imBut" SRC="imButup.gif" WIDTH=62 HEIGHT=28 BORDER=0></A>
After a break, next column, for CSS positioning, we will continue our look at the new scripting event handlers, for it is mostly response to events that makes the new HTML Dynamic.
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Created: 07/23/97
Revised: 09/28/97
URL: http://www.webreference.com/dhtml/column1/allcode.html
