// JScript File

var totalNewsItem;
var currentNewsItem;

function initNewsScroller() {
	if($('newsScrollerBackButton')!=null && $('newsScrollerNextButton')!=null){
		$('newsScrollerBackButton').addEvent('onclick', NewsScrollerBackClick);	
		$('newsScrollerNextButton').addEvent('onclick', NewsScrollerNextClick);
	

		totalNewsItem = $('hiddenNewsItems').value;
		$('totalNewsItem').innerHTML= totalNewsItem;
		currentNewsItem = 1;
	
		SetNewsScrollerPosition(1);
	}
		
}

function NewsScrollerBackClick() {
	if(currentNewsItem ==1) {
		currentNewsItem = totalNewsItem;
	} else {
		currentNewsItem = currentNewsItem-1;
	}
	SetNewsScrollerPosition(currentNewsItem);
}

function NewsScrollerNextClick() {	
	if(currentNewsItem ==totalNewsItem) {
		currentNewsItem = 1;
	} else {
		currentNewsItem = currentNewsItem +1;
	}
	SetNewsScrollerPosition(currentNewsItem);
}

function SetNewsScrollerPosition(pos) {

	var newsItems=$('newsScrollerBody').getChildren();
	for(var i=0; i<newsItems.length-1; i++) {
		var item = $(newsItems[i]);
		if (i== (pos-1)) {
		 item.setStyle("display","block");
		} else {
		item.setStyle("display","none");
		}
	}	
	$('presentNewsItem').innerHTML = pos;
}

function popWindow(url) {
	var popWinOK = false;
	newPopWindow=window.open(url,'scag_pop','resizable=yes,scrollbars=yes,height=650,width=780');
	if (window.focus) {
		newPopWindow.focus();
		popWinOK = false;
	} else {
		popWinOK = true;
	}
	return popWinOK;
}