var counter=1;
var src, src2;
var demo;

function DoEnter(msg, im)
{
   demo=msg
   src=im;
   src2=demo.src;
   demo.filters[0].Apply();
   demo.style.visibility="visible";
   demo.filters[0].Play();
   setTimeout("DoChange();", 2000);
};

function DoChange()
{

 demo.filters[0].Apply();
 if (counter==1)
 {
     demo.src=src;
     counter=2;
 }
 else
 {
     demo.src=src2;
     counter=1;
 }
 demo.filters[0].Play();
 setTimeout("DoChange();", 7000);
};