function isEmail(objField){
	if(objField.value.length > 0){
		if(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(objField.value)){
			return true;
		}
	}
	alert("Invalid E-mail Address! Please re-enter.");
	objField.select();
	return false;
}
function trim(str){
return str.replace(/^\s+|\s+$/g,''); }
function validateMyFrm(Form)
	{
		if(trim(Form.txtName.value)=="") {
			alert("Please enter your name");
			Form.txtName.focus();
			return false;
		}
		else if(trim(Form.txtFName.value)=="") {
			alert("Please enter your Friend name");
			Form.txtFName.focus();
			return false;
		}
		else if(trim(Form.txtEmail.value)=="") {
			alert("Please enter your friend's EmailID");
			Form.txtEmail.focus();
			return false;
		}
		else if(isEmail(Form.txtEmail)==false) {
			Form.txtEmail.focus();
			return false;
		}
}