function validateEmial (frm) {

	var str = frm;
	if (window.RegExp) {
		var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
		var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$";
		var reg1 = new RegExp(reg1str);
		var reg2 = new RegExp(reg2str);
		if (!reg1.test(str) && reg2.test(str)) {
			return true;
		}

		return false;
	} else {
		if (str.indexOf("@")>=0) {
			return true;
		}
		return false;
	}
}

function checkLoginInputs() {
	
	var field = login_form.txtUID;
	var fieldVal = login_form.txtUID.value;
	
	chValue = true;
	
	if (validateEmial (login_form.txtUID.value)) {
		chValue = true;
	} else  {
		chValue = false;
		field.focus();
		field.select();
		document.chValue = false;
		alert ("Enter valid email address");
		return false;
	}
	
	var field = login_form.txtPWD;
	var fieldVal = login_form.txtPWD.value;
	
	if (fieldVal.length > 4) {
		chValue = true;
	} else  {
		chValue = false;
		field.focus();
		field.select();
		document.chValue = false;
		alert ("Password should have at least 5 letters.");
		return false;
	}
	
	document.chValue = true;

}