/****************************************************
* Common javascript functions 
****************************************************/
// Highlight where we are in top navigation
function highNav(where) {
	document.getElementById(where).style.backgroundColor = "#CADEF7";
	document.getElementById(where).style.borderBottom = "none";
}

// Check if value entered into field
function exists(inputValue) {
	var aCharExists = false;
	for (var i=0; i<= inputValue.length; i++) {
		if (inputValue.charAt(i) != " " && inputValue.charAt(i) != "") {
			aCharExists = true;
			break
		}
	}
	return aCharExists;
}

// Check if value entered into login form
function validateLogin() {
	var validForm = true;
	var err = document.getElementById("errormsg");
	
	
	err.style.visibility = "hidden";
	err.innerHTML = "";	
	if (!exists(document.ftplogin.fuser.value)) {
		validForm = false;
		err.innerHTML = err.innerHTML + "User name must be entered.<br />";
	} 
	if (!exists(document.ftplogin.fpw.value)) {
		validForm = false;
		err.innerHTML = err.innerHTML + "Password must be entered.<br />";
	}

	if (!validForm) {
		err.style.visibility = "visible";
	}
	return validForm;
}

// Check if value entered into login form
function validateUpload() {
 
	var validForm = true;
	var err = document.getElementById("errmsg1");
	
	
	err.style.visibility = "hidden";
	err.innerHTML = "";	
	 
	if (!exists(document.ftpupload.ftpFN.value)) {
		validForm = false;
		err.innerHTML = err.innerHTML + "File name must be entered.<br />";
	} 
	
	if (!validForm) {
		err.style.visibility = "visible";
	}
	return validForm;
}