// Text is blinking red and black

<script type="text/javascript">
window.onload=function() {
	var isRed = false;
	var selectAll = document.body;
	setInterval(function() {
		if (!isRed) {
	        selectAll.style.color = "red";
	        isRed = true;
	    } else {
	    	selectAll.style.color = "black";
	    	isRed = false;
	    }
    }, 100);
}
</script>