function validateLogin(){
	var ouname=document.getElementById("username");
	ouname.value=trimAll(ouname.value);
	var str=ouname.value;
	if(str==""){
		alert("Please enter your Username");
		ouname.focus();
		return false;
	}
	var objpass=document.getElementById("password");
	if(objpass.value===""){
		alert("Please enter your Password.");
		objpass.focus();
		return false;
	}
	return true;
}