var z7newsteaserHeight = 0;
var z7newsteaserActive = 1;
var z7newsteaserNext = 0;

function z7newsteaserStart() {
	// get the height
	z7newsteaserHeight = $('#newsteaser-container-all').height();
	
	// inverse animation
	z7newsteaserHeight = -1 * z7newsteaserHeight;
	
	setTimeout("z7newsteaserChange()", z7newsteaserTimeout);
}


function z7newsteaserChange() {

	// get next element's number
	z7newsteaserNext = z7newsteaserActive+1;
	if(z7newsteaserNext > z7newsteaserCount) {
		z7newsteaserNext = 1;
	}

	// do the action
	z7newsteaserAction();

	// repeat the stuff with new values
	z7newsteaserActive = z7newsteaserNext;
	setTimeout("z7newsteaserChange()", z7newsteaserTimeout);
}


function z7newsteaserAction() {

	// animate the current and the next element
	$('#newsteaser-container-item-'+z7newsteaserNext).fadeIn( { duration:z7newsteaserDuration } );
	$('#newsteaser-container-item-'+z7newsteaserActive).fadeOut({ duration:z7newsteaserDuration } );
}


/*
 * add some stuff to document's onload event
 */
if (window.addEventListener) {
	window.addEventListener('load', function() { z7newsteaserStart(); }, true);
}
else if(window.attachEvent) {
	window.attachEvent('onload', function() { z7newsteaserStart(); });
}