if (document.all || document.getElementById){ //if IE4 or NS6+
document.write('<style type="text/css">\n')
document.write('.rotation{display: none;}\n')
document.write('</style>')
}

var curcontentindex=0
var messages=new Array()

function getElementByClass(classname){
var inc=0
var alltags=document.all? document.all : document.getElementsByTagName("*")
for (i=0; i<alltags.length; i++) {
if (alltags[i].className==classname)
messages[inc++]=alltags[i]
}
}

function rotatecontent(which) {
if (which) {
for (i=0; i<messages.length; i++) {
if (messages[i])
messages[i].style.display="none"
}
newindex=(which-1);
messages[newindex].style.display="block";
curcontentindex=newindex;
} else {
//get current message index (to show it):
curcontentindex=(curcontentindex<messages.length-1)? curcontentindex+1 : 0
//get previous message index (to hide it):
prevcontentindex=(curcontentindex==0)? messages.length-1 : curcontentindex-1
messages[prevcontentindex].style.display="none" //hide previous message
messages[curcontentindex].style.display="block" //show current message
}
}


window.onload=function(){
if (document.all || document.getElementById){
getElementByClass("rotation")
}
}