function validate_email(field) {
	// function to validate an email address
	with (field){
		apos=value.indexOf("@")
		dotpos=value.lastIndexOf(".")
		if (apos<1||dotpos-apos<2)
			{return false}
		else
			{return true}
		}
}

function checknumber(x) {
	//check for a valid number
	var anum=/(^\d+$)|(^\d+\.\d+$)/
	if (anum.test(x))
		testresult=true
	else{
		testresult=false
	}
	return (testresult)
}

function formsubmit(objForm) {
	//makes form submit when combo box changes
	objForm.form.submit();
}

function trim(str) {
	//emulates the vbscript trim function
	return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
}

function MsgBox(tMsg) {
	// show message box
	alert(tMsg);
}
function MsgOkCancel(tMsg) {
	// show Yes/No message box with tMsg question
	return confirm(tMsg);
}

function GetXmlHttpObject() {
	//used for AJAX calls...
	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 toggle_display(inDiv) {
	// toggle the css display property of a specified div object
	if (document.getElementById(inDiv).style.display == 'none') {
		document.getElementById(inDiv).style.display = 'block';
	} else {
		document.getElementById(inDiv).style.display = 'none';
	}
}


/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
/* These functions are used for to position a 'lightbox' effect div                                     */
/* which can be used for any form activity...                                                           */
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
function getPageSize(){
	//this funcion gets the page dimensions... windowWidth,windowHeight,pageWidth,pageHeight
	//seems to work in Firefox 3, IE8, Chrome...
	var xScroll = 0, yScroll = 0;
	if (window.innerHeight && window.scrollMaxY) {
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else if (document.documentElement && document.documentElement.scrollHeight > document.documentElement.offsetHeight){ // Explorer 6 strict mode
		xScroll = document.documentElement.scrollWidth;
		yScroll = document.documentElement.scrollHeight;
	} else { // Explorer Mac...would also work in Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}

	var windowWidth = 0, windowHeight = 0;
	if (self.innerHeight) { // all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}

	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}

	return [windowWidth,windowHeight,pageWidth,pageHeight];
}
function getScrollXY() {
	//this funcion gets the offset of the page (i.e. how far the page is scrolled down)
	//seems to work in Firefox 3, IE8, Chrome...
	var scrOfX = 0, scrOfY = 0;
	if( typeof( window.pageYOffset ) == 'number' ) {
		//Netscape compliant
		scrOfY = window.pageYOffset;
		scrOfX = window.pageXOffset;
	} else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
		//DOM compliant
		scrOfY = document.body.scrollTop;
		scrOfX = document.body.scrollLeft;
	} else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
		//IE6 standards compliant mode
		scrOfY = document.documentElement.scrollTop;
		scrOfX = document.documentElement.scrollLeft;
	}
	return [scrOfX,scrOfY];
}
function Position_Content(divID) {
	//This funtion is used to show the 'content' div and position it in the center of the viewport

	//this gets the page dimensions
	var arrDimensions = getPageSize();
	var windowWidth = arrDimensions[0];
	var windowHeight = arrDimensions[1];
	var pageWidth = arrDimensions[2];
	var pageHeight = arrDimensions[3];

	//get the offset of the page (i.e. how far the page is scrolled down)...
	var arrScrollPos = getScrollXY()
	nOffsetY = arrScrollPos[1];

	//show the div
	document.getElementById(divID).style.display = "block";

	//once the div is shown, we can get it's height
	var divHeight = document.getElementById(divID).offsetHeight;

	//calculate the top margin to place the div in the center of the viewport
	var divTopMargin = nOffsetY + ((windowHeight-divHeight)/2)

	//if the height of the top margin plus the div height is greater than the page height...
	if (divTopMargin+divHeight > pageHeight)
		//alter the top margin so the div ends 10px above the bottom of the page
		{divTopMargin = pageHeight-divHeight-10;}
	//if the height of the top margin is < 10 (i.e. will be above the top of the page)...
	else if (divTopMargin < 10)
		//alter the top margin to 10px
		{divTopMargin = 10;}

	//finally, position the div
	document.getElementById(divID).style.margin = divTopMargin+"px auto 0 auto";
}
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

/* Lorem Ipsum Generator
 * (CC-BY) Fredrik Bridell <fredrik@bridell.com> 2009
 * Version 0.21 - multilingual
 * Released under a Creative Commons Attribution License
 *
 * You are welcome to use, share, modify, print, frame, or do whatever you like with this 
 * software, including commercial use. My only request is that you tell the world where you found it.
 * 
 * One way is to include the phrase: 
 * "Using the The Lorem Ipsum Generator by Fredrik Bridell (http://bridell.com/loremipsum/)"
 *
 * To use this on your web page: download the .js file and place it on your web server (please
 * do not include it from my server). In your html file, include the markup
 * <script type="text/javascript" src="loremipsum.js" />
 * (In the head or in the body).
 *
 * Where you want the Lorem Ipsum, include this markup:
 * <script type="text/javascript">loremIpsumParagraph(100)</script>
 * The number is the number of words in the paragraph. 
 */ 

/* Latin words, These are all the words in the first 100 lines of Ovid's Metamorphoses, Liber I. */
var arrLatin =["ab", "aberant", "abscidit", "acervo", "ad", "addidit", "adhuc", "adsiduis", "adspirate", "aequalis", "aer", "aera", "aere", "aeris", "aestu", "aetas", "aethera", "aethere", "agitabilis", "aliis", "aliud", "alta", "altae", "alto", "ambitae", "amphitrite", "animal", "animalia", "animalibus", "animus", "ante", "aquae", "arce", "ardentior", "astra", "aurea", "auroram", "austro", "bene", "boreas", "bracchia", "caeca", "caecoque", "caeleste", "caeli", "caelo", "caelum", "caelumque", "caesa", "calidis", "caligine", "campoque", "campos", "capacius", "carentem", "carmen", "cepit", "certis", "cesserunt", "cetera", "chaos:", "cingebant", "cinxit", "circumdare", "circumfluus", "circumfuso", "coegit", "coeperunt", "coeptis", "coercuit", "cognati", "colebat", "concordi", "congeriem", "congestaque", "consistere", "contraria", "conversa", "convexi", "cornua", "corpora", "corpore", "crescendo", "cum", "cuncta", "cura", "declivia", "dedit", "deducite", "deerat", "dei", "densior", "deorum", "derecti", "descenderat", "deus", "dextra", "di", "dicere", "diffundi", "diremit", "discordia", "dispositam", "dissaepserat", "dissociata", "distinxit", "diu", "diversa", "diverso", "divino", "dixere", "dominari", "duae", "duas", "duris", "effervescere", "effigiem", "egens", "elementaque", "emicuit", "ensis", "eodem", "erant", "erat", "erat:", "erectos", "est", "et", "eurus", "evolvit", "exemit", "extendi", "fabricator", "facientes", "faecis", "fecit", "feras", "fert", "fidem", "figuras", "finxit", "fixo", "flamina", "flamma", "flexi", "fluminaque", "fontes", "foret", "forma", "formaeque", "formas", "fossae", "fratrum", "freta", "frigida", "frigore", "fronde", "fuerant", "fuerat", "fuit", "fulgura", "fulminibus", "galeae", "gentes", "glomeravit", "grandia", "gravitate", "habendum", "habentem", "habentia", "habitabilis", "habitandae", "haec", "hanc", "his", "homini", "hominum", "homo", "horrifer", "humanas", "hunc", "iapeto", "ignea", "igni", "ignotas", "illas", "ille", "illi", "illic", "illis", "imagine", "in", "inclusum", "indigestaque", "induit", "iners", "inmensa", "inminet", "innabilis", "inposuit", "instabilis", "inter", "invasit", "ipsa", "ita", "iudicis", "iuga", "iunctarum", "iussit", "lacusque", "lanient", "lapidosos", "lege", "legebantur", "levitate", "levius", "liberioris", "librata", "ligavit:", "limitibus", "liquidas", "liquidum", "litem", "litora", "locavit", "locis", "locoque", "locum", "longo", "lucis", "lumina", "madescit", "magni", "manebat", "mare", "margine", "matutinis", "mea", "media", "meis", "melior", "melioris", "membra", "mentes", "mentisque", "metusque", "militis", "minantia", "mixta", "mixtam", "moderantum", "modo", "moles", "mollia", "montes", "montibus", "mortales", "motura", "mundi", "mundo", "mundum", "mutastis", "mutatas", "nabataeaque", "nam", "natura", "naturae", "natus", "ne", "nebulas", "nec", "neu", "nisi", "nitidis", "nix", "non", "nondum", "norant", "nova", "nubes", "nubibus", "nullaque", "nulli", "nullo", "nullus", "numero", "nunc", "nuper", "obliquis", "obsistitur", "obstabatque", "occiduo", "omni", "omnia", "onerosior", "onus", "opifex", "oppida", "ora", "orba", "orbe", "orbem", "orbis", "origine", "origo", "os", "otia", "pace", "parte", "partim", "passim", "pendebat", "peragebant", "peregrinum", "permisit", "perpetuum", "persidaque", "perveniunt", "phoebe", "pinus", "piscibus", "plagae", "pluvialibus", "pluviaque", "poena", "pondere", "ponderibus", "pondus", "pontus", "porrexerat", "possedit", "posset:", "postquam", "praebebat", "praecipites", "praeter", "premuntur", "pressa", "prima", "primaque", "principio", "pro", "pronaque", "proxima", "proximus", "pugnabant", "pulsant", "quae", "quam", "quanto", "quarum", "quem", "qui", "quia", "quicquam", "quin", "quinta", "quisque", "quisquis", "quod", "quoque", "radiis", "rapidisque", "recens", "recepta", "recessit", "rectumque", "regat", "regio", "regna", "reparabat", "rerum", "retinebat", "ripis", "rudis", "sanctius", "sata", "satus", "scythiam", "secant", "secrevit", "sectamque", "secuit", "securae", "sed", "seductaque", "semina", "semine", "septemque", "sibi", "sic", "siccis", "sidera", "silvas", "sine", "sinistra", "sive", "sole", "solidumque", "solum", "sorbentur", "speciem", "spectent", "spisso", "sponte", "stagna", "sua", "subdita", "sublime", "subsidere", "sui", "suis", "summaque", "sunt", "super", "supplex", "surgere", "tanta", "tanto", "tegi", "tegit", "tellure", "tellus", "temperiemque", "tempora", "tenent", "tepescunt", "terra", "terrae", "terram", "terrarum", "terras", "terrenae", "terris", "timebat", "titan", "tollere", "tonitrua", "totidem", "totidemque", "toto", "tractu", "traxit", "triones", "tuba", "tum", "tumescere", "turba", "tuti", "ubi", "ulla", "ultima", "umentia", "umor", "unda", "undae", "undas", "undis", "uno", "unus", "usu", "ut", "utque", "utramque", "valles", "ventis", "ventos", "verba", "vesper", "videre", "vindice", "vis", "viseret", "vix", "volucres", "vos", "vultus", "zephyro", "zonae"];

/* Characters to end a sentence with. Repeat for frequencies (i.e. most sentences end in a period) */
var endings = "................................??!";

/* randomly returns true with a certain chance (a percentage) */
function chance(percentage){
	return (Math.floor(Math.random() * 100) < percentage);
}

/* capitalizes a word */
function capitalize(aString){
	return aString.substring(0,1).toUpperCase() + aString.substring(1, aString.length);
}

/* returns a random lorem word */
function getLoremWord(){
	return arrLatin[Math.floor(Math.random()*arrLatin.length)];
}

function getLoremEnding(){
	var i = Math.floor(Math.random()*endings.length);
	return endings.substring(i, i+1);
}

/* inserts a number of lorem words. Does not append a space at the end. */
function loremIpsum(numWords){
	for(var i=0; i<numWords-1; i++){
		document.write(getLoremWord() + " ");
	}
	document.write(getLoremWord());
}

/* inserts a sentence of random words, sometimes with extra punctuation. Appends a space at the end. */
function loremIpsumSentence(numWords){
	document.write(capitalize(getLoremWord()) + " ");
	var part1 = 0;
	if(chance(50)){
		// insert a comma or other punctuation within the sentence
		part1 = Math.floor(Math.random() * numWords-2);
		loremIpsum(part1);
		document.write(", ");
	} else {
		document.write(" ");
	}
	loremIpsum(numWords - part1 - 1);
	document.write(getLoremEnding());
	document.write(" ");
}

/* inserts a paragraph of sentences of random words. */
function loremIpsumParagraph(numWords){
	var words = numWords;
	while(words > 0){
		if(words > 10){
			w = Math.floor(Math.random() * 8) + 2;
			loremIpsumSentence(w);
			words = words - w;
		} else {
			loremIpsumSentence(words);
			words = 0;
		}
	}
}