function mostradata(){

	var now = new Date();
	var hours = now.getHours();
	var minutes = now.getMinutes();
	var seconds = now.getSeconds()

	if (hours <=9)
		hours="0"+hours;

	if (minutes<=9)
		minutes="0"+minutes;

	if (seconds<=9)
		seconds="0"+seconds;

	var cdate=""+hours+":"+minutes+":"+seconds+" "+""; 

	var obj = document.getElementById("clock");
	obj.innerHTML = cdate;
	
	setTimeout("mostradata()",1000);
}