var timer1 = setTimeout("blinkOn()",1300);


function blinkOn(){
	clearTimeout(timer1);
	document.nav17.src = "images/btn_next_on.gif";
	var timer1 = setTimeout("blinkOff()",100);
}

function blinkOff(){
	clearTimeout(timer1);
	document.nav17.src = "images/btn_next_off.gif";
	var timer1 = setTimeout("blinkOn1()",100);
}

function blinkOn1(){
	clearTimeout(timer1);
	document.nav17.src = "images/btn_next_on.gif";
	var timer1 = setTimeout("blinkOff1()",100);
}

function blinkOff1(){
	clearTimeout(timer1);
	document.nav17.src = "images/btn_next_off.gif";
	var timer1 = setTimeout("blinkOn2()",100);
}

function blinkOn2(){
	clearTimeout(timer1);
	document.nav17.src = "images/btn_next_on.gif";
	var timer1 = setTimeout("blinkOff2()",100);
}

function blinkOff2(){
	clearTimeout(timer1);
	document.nav17.src = "images/btn_next_off.gif";
	var timer1 = setTimeout("blinkOn3()",100);
}

function blinkOn3(){
	clearTimeout(timer1);
	document.nav17.src = "images/btn_next_on.gif";
}