/****************************************************
* Common javascript functions 
****************************************************/
var good = '#CCCCCC';	// normal background colour for input fields
var bad = '#FFCC66'; // colour to indicate bad field


// 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 = "";	
	
	document.ftplogin.fuser.style.backgroundColor = good;
	document.ftplogin.fpw.style.backgroundColor = good;
	

	if (!exists(document.ftplogin.fpw.value)) {
		validForm = false;
		err.innerHTML = err.innerHTML + "Password must be entered.<br />";
		document.ftplogin.fpw.focus();
		document.ftplogin.fpw.style.backgroundColor = bad;
	}
	if (!exists(document.ftplogin.fuser.value)) {
		validForm = false;
		err.innerHTML = err.innerHTML + "User name must be entered. ";
		document.ftplogin.fuser.focus();
		document.ftplogin.fuser.style.backgroundColor = bad;
	} 

	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");
	document.ftpupload.ftpFN.style.backgroundColor = good;
	
	err.style.visibility = "hidden";
	err.innerHTML = "";	
	 
	if (!exists(document.ftpupload.ftpFN.value)) {
		validForm = false;
		err.innerHTML = err.innerHTML + "File name must be entered.";
		document.ftpupload.ftpFN.focus();
		document.ftpupload.ftpFN.style.backgroundColor = bad;
	} 
	
	if (!validForm) {
		err.style.visibility = "visible";
	}
	return validForm;
}

// Change characteristics of submit button on hover and on mouse out
function hoverButton(what) {
	document.getElementById(what).style.color = '#2F4C70';
	document.getElementById(what).style.backgroundColor = '#FFFFFF';
}
function outButton(what) {
	document.getElementById(what).style.color = '#FFFFFF';
	document.getElementById(what).style.backgroundColor = '#2F4C70';
}

// Common dreamweaver functions
function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}