function chkLogin(){
	var uname = document.getElementById("username").value;
	var pwd = document.getElementById("password").value;
	
	if (uname.search(/\S/) == -1) {
		hideAllErrors();
		document.getElementById("userErr").style.display = "inline";
		document.getElementById("username").select();
		document.getElementById("username").focus();
	return false;
  	} 
	
	if (pwd.search(/\S/) == -1) {
		hideAllErrors();
		document.getElementById("passErr").style.display = "inline";
		document.getElementById("password").select();
		document.getElementById("password").focus();
	return false;
  	}
	
return true;	
}

function hideAllErrors(){
	document.getElementById("userErr").style.display="none";
	document.getElementById("passErr").style.display="none";
}