Este código te permite simulando una lluvia de palabras crear un párrafo, ideal para llamar la atención con un mensaje
<html>
<head>
<title>Palabras que caen hasta completar un párrafo</title>
<script LANGUAGE="JavaScript" FPTYPE="dynamicanimation8">
dynamicanimAttr = "dynamicanimation8"
animateElements = new Array()
currentElement = 0
speed = 0
stepsZoom = 8
stepsWord = 8
stepsFly = 12
stepsSpiral = 16
steps = stepsZoom
step = 0
outString = ""
function dynAnimation8()
{
var ms = navigator.appVersion.indexOf("MSIE")
ie4 = (ms>0) && (parseInt(navigator.appVersion.substring(ms+5, ms+6)) >= 4)
if(!ie4)
{
if((navigator.appName == "Netscape") &&
(parseInt(navigator.appVersion.substring(0, 1)) >= 4))
{
for (index=document.layers.length-1; index >= 0; index--)
{
layer=document.layers[index]
if (layer.left==10000)
layer.left=0
}
}
return
}
for (index=document.all.length-1; index >= document.body.sourceIndex; index--)
{
el = document.all[index]
animation = el.getAttribute(dynamicanimAttr, false)
if(null != animation)
{
if(animation == "dropWord" || animation == "flyTopRightWord" || animation == "flyBottomRightWord")
{
ih = el.innerHTML
outString = ""
i1 = 0
iend = ih.length
while(true)
{
i2 = startWord(ih, i1)
if(i2 == -1)
i2 = iend
outWord(ih, i1, i2, false, "")
if(i2 == iend)
break
i1 = i2
i2 = endWord(ih, i1)
if(i2 == -1)
i2 = iend
outWord(ih, i1, i2, true, animation)
if(i2 == iend)
break
i1 = i2
}
document.all[index].innerHTML = outString
document.all[index].style.posLeft = 0
document.all[index].setAttribute(dynamicanimAttr, null)
}
if(animation == "zoomIn" || animation == "zoomOut")
{
ih = el.innerHTML
outString = "<SPAN " + dynamicanimAttr + "=\"" + animation + "\" style=\"position: relative; left: 10000;\">"
outString += ih
outString += "</SPAN>"
document.all[index].innerHTML = outString
document.all[index].style.posLeft = 0
document.all[index].setAttribute(dynamicanimAttr, null)
}
}
}
i = 0
for (index=document.body.sourceIndex; index < document.all.length; index++)
{
el = document.all[index]
animation = el.getAttribute(dynamicanimAttr, false)
if (null != animation)
{
if(animation == "flyLeft")
{
el.style.posLeft = 10000-offsetLeft(el)-el.offsetWidth
el.style.posTop = 0
}
else if(animation == "flyRight")
{
el.style.posLeft = 10000-offsetLeft(el)+document.body.offsetWidth
el.style.posTop = 0
}
else if(animation == "flyTop" || animation == "dropWord")
{
el.style.posLeft = 0
el.style.posTop = document.body.scrollTop-offsetTop(el)-el.offsetHeight
}
else if(animation == "flyBottom")
{
el.style.posLeft = 0
el.style.posTop = document.body.scrollTop-offsetTop(el)+document.body.offsetHeight
}
else if(animation == "flyTopLeft")
{
el.style.posLeft = 10000-offsetLeft(el)-el.offsetWidth
el.style.posTop = document.body.scrollTop-offsetTop(el)-el.offsetHeight
}
else if(animation == "flyTopRight" || animation == "flyTopRightWord")
{
el.style.posLeft = 10000-offsetLeft(el)+document.body.offsetWidth
el.style.posTop = document.body.scrollTop-offsetTop(el)-el.offsetHeight
}
else if(animation == "flyBottomLeft")
{
el.style.posLeft = 10000-offsetLeft(el)-el.offsetWidth
el.style.posTop = document.body.scrollTop-offsetTop(el)+document.body.offsetHeight
}
else if(animation == "flyBottomRight" || animation == "flyBottomRightWord")
{
el.style.posLeft = 10000-offsetLeft(el)+document.body.offsetWidth
el.style.posTop = document.body.scrollTop-offsetTop(el)+document.body.offsetHeight
}
else if(animation == "spiral")
{
el.style.posLeft = 10000-offsetLeft(el)-el.offsetWidth
el.style.posTop = document.body.scrollTop-offsetTop(el)-el.offsetHeight
}
else if(animation == "zoomIn")
{
el.style.posLeft = 10000
el.style.posTop = 0
}
else if(animation == "zoomOut")
{
el.style.posLeft = 10000
el.style.posTop = 0
}
else
{
el.style.posLeft = 10000-offsetLeft(el)-el.offsetWidth
el.style.posTop = 0
}
el.initLeft = el.style.posLeft
el.initTop = el.style.posTop
animateElements[i++] = el
}
}
window.setTimeout("animate();", speed)
}
function offsetLeft(el)
{
x = el.offsetLeft
for (e = el.offsetParent; e; e = e.offsetParent)
x += e.offsetLeft;
return x
}
function offsetTop(el)
{
y = el.offsetTop
for (e = el.offsetParent; e; e = e.offsetParent)
y += e.offsetTop;
return y
}
function startWord(ih, i)
{
for(tag = false; i < ih.length; i++)
{
c = ih.charAt(i)
if(c == '<')
tag = true
if(!tag)
return i
if(c == '>')
tag = false
}
return -1
}
function endWord(ih, i)
{
nonSpace = false
space = false
while(i < ih.length)
{
c = ih.charAt(i)
if(c != ' ')
nonSpace = true
if(nonSpace && c == ' ')
space = true
if(c == '<')
return i
if(space && c != ' ')
return i
i++
}
return -1
}
function outWord(ih, i1, i2, dyn, anim)
{
if(dyn)
outString += "<SPAN " + dynamicanimAttr + "=\"" + anim + "\" style=\"position: relative; left: 10000;\">"
outString += ih.substring(i1, i2)
if(dyn)
outString += "</SPAN>"
}
function animate()
{
el = animateElements[currentElement]
animation = el.getAttribute(dynamicanimAttr, false)
step++
if(animation == "spiral")
{
steps = stepsSpiral
v = step/steps
rf = 1.0 - v
t = v * 2.0*Math.PI
rx = Math.max(Math.abs(el.initLeft), 200)
ry = Math.max(Math.abs(el.initTop), 200)
el.style.posLeft = Math.ceil(-rf*Math.cos(t)*rx)
el.style.posTop = Math.ceil(-rf*Math.sin(t)*ry)
}
else if(animation == "zoomIn")
{
steps = stepsZoom
el.style.fontSize = Math.ceil(50+50*step/steps) + "%"
el.style.posLeft = 0
}
else if(animation == "zoomOut")
{
steps = stepsZoom
el.style.fontSize = Math.ceil(100+200*(steps-step)/steps) + "%"
el.style.posLeft = 0
}
else
{
steps = stepsFly
if(animation == "dropWord" || animation == "flyTopRightWord" || animation == "flyBottomRightWord")
steps = stepsWord
dl = el.initLeft / steps
dt = el.initTop / steps
el.style.posLeft = el.style.posLeft - dl
el.style.posTop = el.style.posTop - dt
}
if (step >= steps)
{
el.style.posLeft = 0
el.style.posTop = 0
currentElement++
step = 0
}
if(currentElement < animateElements.length)
window.setTimeout("animate();", speed)
}
</script>
</head>
<body TEXT="#000000" LINK="#000000" ALINK="#FFD700" VLINK="#FFD700"
onload="dynAnimation8()">
<p dynamicanimation8="dropWord" style="position: relative; left: 10000"><font color="#FF0000"><big><big>Observa
como caen las palabras hasta completar un párrafo. Es un efecto muy llamativo
para destacar cualquier tipo de mensajes en tu página web. Coloca este script
en tu página web.</big></big></font></p>
<p align="center"><a href="http://www.uterra.com">www.uterra.com</a></p>
</body>
</html>