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_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_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];}
}

//-----------------------

function isBlank(s) {
		for (var i=0; i < s.length; i++) {
			c = s.charAt(i);
			if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
		}
		if (s != "") return false;
		return true;
}

function isEmail(s) {
	if (s != null) {
		var pos1 = s.indexOf('@');
		var pos2 = s.indexOf('.');
		invalid_ch = "\/#?!, ";

			for (var i=0;i<s.length;i++) {  // check for invalid chars
			if(invalid_ch.indexOf(s.charAt(i)) != -1) {
				return false;				
			}
		}
		if ((pos1 == -1) || (pos2 == -1) || (s.indexOf('@', pos1+1) != -1)) {
			return false;
		}
		return true;
	}
}

function Strip(str) {
	str = str.replace("__", "");
	str = str.replace("_NUM", "");
	return str;
}

function validate(f) {
	var msg = "";
	var errors = "";
	var emptyFields = "";
	var error1 = -1;

	for (var i=0; i<f.length; i++) {
		var e = f.elements[i];
		if (((e.type == "text") || (e.type == "textarea") || (e.type == "password") || (e.type == "select-one") || (e.type == "file")) && (e.name.indexOf("__") != -1) && (!e.disabled)) {
			if ((e.value == null) || (e.value == "") || isBlank(e.value)) {
				emptyFields += "\n- "+ Strip(e.name);
				if (error1 == -1) error1 = i;
				continue;
			}
		}
		/*
		if ((e.type == "file") && (e.value != "") && (e.value.toLowerCase().indexOf(".jpg") == -1)) {
			errors += "- Please upload photo in *.jpg format.\n";
			if (error1 == -1) error1 = i;
		}
		*/
		if ((e.name.indexOf("email") != -1) && (!isBlank(e.value))) {
			var email = e.value;
			if (!isEmail(email)) {
				errors += "- Invalid email address format.\n";
				if (error1 == -1) error1 = i;
			}
		}
		if ((e.name.indexOf("_NUM") != -1) && (!isBlank(e.value)) && (isNaN(e.value.replace(",", "")))) {
			errors += "- Non-numeric: " + Strip(e.name) + ".\n";
			if (error1 == -1) error1 = i;
		}
		if ((e.name.indexOf("date") != -1) && (!isBlank(e.value)) && (e.value != "mm/dd/yyyy")) {
			var fdate = e.value;
			if (!Date.parse(fdate)) {
				errors += "- Please enter a valid "+ Strip(e.name) +"! (mm/dd/yyyy)\n";
				if (error1 == -1) error1 = i;
			}
		}
	}
	if (emptyFields) {
		msg += "The following required field(s) is(are) missing: "+ emptyFields + "\n\n";
	}
	if (errors) {
		msg += "Please correct the followng error(s):\n"+errors;
	}
	if ((errors) || (emptyFields)) {
		alert(msg);
		if ((f.elements[error1].type == "text") || (f.elements[error1].type == "textarea")) {
			f.elements[error1].select();
			f.elements[error1].focus();
		}
		else {
			f.elements[error1].focus();
		}
		return false;
	}
	if ((!emptyFields) && (!errors)) return true;
}

var choice = "";
function SetChoice(n) {
	choice = n;
}

function HasChosen() {
	if (choice == "") {
		alert("Please select from the poll options.");
		return false;
	}
	else return true;
}

function ConfirmDelete(url) {
	if (confirm('Are you sure you want to delete this entry?')) window.location = url;
	else return;
}

var xmlHttp;

function GetXmlHttpObject() {
	var xmlHttp=null;
	try {
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	}
	catch(e) {
		// Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

function SetQueryString(frm) { 
	var queryString = ""; 
	var numberElements = frm.elements.length; 
	for(var i = 0; i < numberElements; i++) { 
		if (i < numberElements-1) { 
			queryString += frm.elements[i].name+"=" + encodeURIComponent(frm.elements[i].value)+"&"; 
		} else { 
			queryString += frm.elements[i].name+"=" + encodeURIComponent(frm.elements[i].value); 
		} 
	}
	return queryString;
}