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AQUI VA EL MENSAJE DE USTEDES
<div align='right'> <a href='#' onClick='hidefadebox();return false'>Hide Box</a></div>
</div>

/***********************************************
* Sticky Note script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit DynamicDrive.com for hundreds of DHTML scripts
* This notice must stay intact for legal use
* Go to http://www.dynamicdrive.com/ for full source code
***********************************************/

//Specify display mode. 3 possible values are:
//1) "always"- This makes the fade-in box load each time the page is displayed
//2) "oncepersession"- This uses cookies to display the fade-in box only once per browser session
//3) integer (ie: 5)- Finally, you can specify an integer to display the box randomly via a frequency of 1/integer...
// For example, 2 would display the box about (1/2) 50% of the time the page loads.

var displaymode="always"

var enablefade="yes" //("yes" to enable fade in effect, "no" to disable)
var autohidebox=["yes", 5] //Automatically hide box after x seconds? [yes/no, if_yes_hide_after_seconds]
var showonscroll="yes" //Should box remain visible even when user scrolls page? ("yes"/"no)
var IEfadelength=1 //fade in duration for IE, in seconds
var Mozfadedegree=0.05 //fade in degree for NS6+ (number between 0 and 1. Recommended max: 0.2)

////////No need to edit beyond here///////////

if (parseInt(displaymode)!=NaN)
var random_num=Math.floor(Math.random()*displaymode)

function displayfadeinbox(){
var ie=document.all && !window.opera
var dom=document.getElementById
iebody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
objref=(dom)? document.getElementById("fadeinbox") : document.all.fadeinbox
var scroll_top=(ie)? iebody.scrollTop : window.pageYOffset
var docwidth=(ie)? iebody.clientWidth : window.innerWidth
docheight=(ie)? iebody.clientHeight: window.innerHeight
var objwidth=objref.offsetWidth
objheight=objref.offsetHeight
objref.style.left=docwidth/2-objwidth/2+"px"
objref.style.top=scroll_top+docheight/2-objheight/2+"px"", offset)
if (end == -1)
end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset, end))
}
}
return returnvalue;
}

if (showonscroll=="yes")
showonscrollvar=setInterval("staticfadebox()", 50)

if (enablefade=="yes" && objref.filters){
objref.filters[0].duration=IEfadelength
objref.filters[0].Apply()
objref.filters[0].Play()
}
objref.style.visibility="visible"
if (objref.style.MozOpacity){
if (enablefade=="yes")
mozfadevar=setInterval("mozfadefx()", 90)
else{
objref.style.MozOpacity=1
controlledhidebox()
}
}
else
controlledhidebox()
}

function mozfadefx(){
if (parseFloat(objref.style.MozOpacity)<1)
objref.style.MozOpacity=parseFloat(objref.style.MozOpacity)+Mozfadedegree
else{
clearInterval(mozfadevar)
controlledhidebox()
}
}

function staticfadebox(){
var ie=document.all && !window.opera
var scroll_top=(ie)? iebody.scrollTop : window.pageYOffset
objref.style.top=scroll_top+docheight/2-objheight/2+"px"
}

function hidefadebox(){
objref.style.visibility="hidden"
if (typeof showonscrollvar!="undefined")
clearInterval(showonscrollvar)
}

function controlledhidebox(){
if (autohidebox[0]=="yes"){
var delayvar=(enablefade=="yes" && objref.filters)? (autohidebox[1]+objref.filters[0].duration)*1000 : autohidebox[1]*1000
setTimeout("hidefadebox()", delayvar)
}
}

function initfunction(){
setTimeout("displayfadeinbox()", 100)
}

function get_cookie(Name) {
var search = Name + "="
var returnvalue = ""
if (document.cookie.length> 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) {
offset += search.length
end = document.cookie.indexOf(";

if (displaymode=="oncepersession" && get_cookie("fadedin")=="" || displaymode=="always" || parseInt(displaymode)!=NaN && random_num==0){
if (window.addEventListener)
window.addEventListener("load", initfunction, false)
else if (window.attachEvent)
window.attachEvent("onload", initfunction)
else if (document.getElementById)
window.onload=initfunction
document.cookie="fadedin=yes"
}
</script>