图片加文字说明PPT效果
<html>
<head>
<title>Listing 35.13. A Wipe Transition for the Incoming Slide</title>
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var div_tags
var span_tags
var css_tags
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// Store how the browser accesses styles
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dhtml_objects[object_id] = new dhtml_object(current_object,
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// Use getElementsByTagName() to get the <span> tags
span_tags = document.getElementsByTagName("span")
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for (var counter = 0; counter < span_tags.length; counter++) {
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// Store how the browser accesses styles
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// Is the browser DHTML DOM compliant?
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// If so, use document.all to get the <div> tags
div_tags = document.all.tags("div")
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for (var counter = 0; counter < div_tags.length; counter++) {
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// Store how the browser accesses styles
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if (object_id) {
// create a new dhtml_object and store it in dhtml_objects
dhtml_objects[object_id] = new dhtml_object(current_object,
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object_id)
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// Use document.all to get the <span> tags
span_tags = document.all.tags("span")
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// Store how the browser accesses styles
object_css = current_object
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// Only store those tags that have an id
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// create a new dhtml_object and store it in dhtml_objects
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this.move_by = move_by
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this.get_clip_bottom = get_clip_bottom
this.get_clip_left = get_clip_left
this.get_clip_width = get_clip_width
this.get_clip_height = get_clip_height
this.resize_clip_to = resize_clip_to
this.resize_clip_by = resize_clip_by
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function get_visibility() {
// Is this a W3C or DHTML DOM browser?
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return this.css.visibility
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// handle the proprietary visibility values
if (this.css.visibility == "show") {
return "visible"
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if (this.css.visibility == "hide") {
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this.css.top = new_top
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this.css.top = this.top() + parseInt(delta_top)
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function set_top (new_top) {
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function set_height (new_height) {
// Is this a W3C or DHTML DOM browser?
if (!document.layers) {
// If so, just set the width property
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// Is this a W3C or DHTML DOM browser?
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// If so, use the backgroundImage property
this.css.backgroundImage = "url(" + new_image + ")"
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// If not, use the backgroun
