var seconds = 20;
window.onload=function(){
	window.setInterval(redirection, 1000);
}
function redirection(){
	if (seconds <= 0){
		 window.clearInterval();
		 return;
	}
	seconds --;
	document.getElementById('spanSeconds').innerHTML = seconds;
	if (seconds == 0){
		window.clearInterval();
		location.href = "/";
	}
}

function iFrameHeight() {   
	var ifm= document.getElementById("iframepage");   
	var subWeb = document.frames ? document.frames["iframepage"].document : ifm.contentDocument;   
	if(ifm != null && subWeb != null) {
	   ifm.height = subWeb.body.scrollHeight;
	}   
}