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];
		}
	}
//	alert(messages.length);
}

function rotatecontent(){
	if (messages.length > 0) {

		//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

	}
}