var iValue;
var rValue;
var TimeIdsaichan;

rValue = Math.ceil(Math.random()*2);
iValue = rValue - 1;


//window.status = "rValue= " + rValue + "  iValue = " + iValue;

function change_saichan(){
clearTimeout(TimeIdsaichan);
iValue=iValue+1;

//window.status = "iValue="+iValue;

if(iValue == 1){
document.all("Layer29").style.left="120";
document.all("saichan").src="saichan-sakka-trans.gif";
document.all("saichan").style.display="block";
document.all("Layer32").style.display="none";
}
else{ 
iValue=0;
document.all("Layer29").style.left="120";
document.all("saichan").src="saichan-s-trans.gif";
document.all("saichan").style.display="block";
document.all("Layer32").style.display="block";

}

TimeIdsaichan = setTimeout("change_saichan()",20000);

}