iBlinkSpeed = 1;
iHide = true;

function runBlink()
{
	var spanList = document.getElementsByTagName("span");

	for(i=0;i<=spanList.length-1;i++)
	{
		if( spanList[i].className == 'blink' )
		{
			if( iHide )
			{
				spanList[i].style.color = '#000000';
				iHide = false;
			}
			else
			{
				spanList[i].style.color = '#FFFFFF';
				iHide = true;
			}
		}
	}

	setTimeout('runBlink();', iBlinkSpeed * 1000);
}