function blink_text()
{
var s1=document.getElementById('blink1');
var s2=document.getElementById('blink2');
var s3=document.getElementById('blink3');
if(s1)
{
	s1.style.visibility=(s1.style.visibility=='visible')?'hidden':'visible';	
}
if(s2)
{
	s2.style.visibility=(s2.style.visibility=='visible')?'hidden':'visible';	
}
if(s3)
{
	s3.style.visibility=(s3.style.visibility=='visible')?'hidden':'visible';	
}
}
function blink_time()
{
setInterval('blink_text()',800);
}