function emptyTopSearch()
{
	document.topNavSearch.q.value = "";
}

function emptyMusicSearch()
{
	document.form2.q.value = "";
}

function openPrivacy(url)
{
	privacyWindow=window.open(url,'privacy','status=yes,scrollbars=yes,resizable=yes,height=350,width=450');
	if (window.focus) {privacyWindow.focus()}
}

function openBugReport()
{
	var page = document.form1.page.value;
	var emailAddress = document.form1.emailAddress.value;
	var comments = document.form1.comments.value;
	bugWindow=window.open('/popup/bugreport.php?page=' + page + '&emailAddress=' + emailAddress + '&comments=' + comments,'bugReport','status=yes,scrollbars=yes,resizable=yes,height=350,width=450');
	if (window.focus) {bugWindow.focus()}

}


function createTarget()
{
	newWin = window.open("", "newWin", "status=yes,scrollbars=yes,resizable=yes,width=450,height=350");
	newWin.focus()
	return true;
}

function noSpam(user, domain) {
	var domain = domain.replace(" dot ",".");
	locationstring = "mailto:" + user + "@" + domain + "?subject=Email From WWEEK.COM";
	window.location = locationstring;
}

function MM_openBrWindow(theURL,winName,features)
{ //v2.0
	return window.open(theURL,winName,features);
}

var commentWindow;
function openCommentWindow(url)
{
	commentWindow=window.open(url,'commentStory','status=yes,scrollbars=yes,resizable=yes,height=400,width=980');
	if (window.focus) {commentWindow.focus()}
}

var emailWindow;
function openEmailWindow(url)
{
	emailWindow=window.open(url,'emailStory','status=yes,scrollbars=yes,resizable=yes,height=400,width=450');
	if (window.focus) {emailWindow.focus()}
}
var printWindow;
function openPrintWindow(url)
{
	printWindow=window.open(url,'printStory','status=yes,scrollbars=yes,resizable=yes,height=550,width=750');
	if (window.focus) {printWindow.focus()}
}

// this function toggles the extra information for making a storyforum entry into a letter to the editor
function toggleLayer(whichLayer)
{
	if (document.getElementById)
	{
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		style2.display = style2.display? "":"block";
	}
	else if (document.all)
	{
		// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	else if (document.layers)
	{
		// this is the way nn4 works
		var style2 = document.layers[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	document.myForm.fullName.value = document.myForm.name.value;
}


// smooth anchors

var scrollInt;
var scrTime, scrSt, scrDist, scrDur, scrInt;




function replaceAnchorLinks()
{
	var anchors, i, targ, targarr;

	if (!document.getElementById)
	return;

	// get all anchors
	anchors = document.getElementsByTagName("a");

	for (i=0;i<anchors.length;i++)
	{

		// check if href links to an anchor on this page
		if ( anchors[i].href.indexOf("#") != -1 && anchors[i].href.indexOf( document.URL ) != -1 )
		{
			// get name of target anchor
			targ = anchors[i].href.substring( anchors[i].href.indexOf("#")+1 );

			// find target anchor
			targarr = document.getElementsByName( targ );

			if (targarr.length)
			{
				anchors[i].className = (targarr[0].offsetTop < anchors[i].offsetTop) ? "up" : "down";
				anchors[i].id = "__" + targ;	// save target as id with prefix (used in onclick function below)
				anchors[i].onmousedown = function () { scrollToAnchor( this.id.substring( 2 ) ); return false; };
				anchors[i].href = "#";			// rewrite href
			}
		}

	}
}


/*
SCROLL FUNCTIONS
*/




function scrollPage()
{
	scrTime += scrInt;
	if (scrTime < scrDur) {
		window.scrollTo( 0, easeInOut(scrTime,scrSt,scrDist,scrDur) );
	}else{
		window.scrollTo( 0, scrSt+scrDist );
		clearInterval(scrollInt);
	}
}

function scrollToAnchor(aname)
{
	var anchors, i, ele;

	if (!document.getElementById)
	return;

	// get anchor
	anchors = document.getElementsByTagName("a");
	for (i=0;i<anchors.length;i++) {
		if (anchors[i].name == aname) {
			ele = anchors[i];
			i = anchors.length;
		}
	}

	// set scroll target
	if (window.scrollY)
	scrSt = window.scrollY;
	else if (document.documentElement.scrollTop)
	scrSt = document.documentElement.scrollTop;
	else
	scrSt = document.body.scrollTop;



	scrDist = ele.offsetTop - scrSt;
	scrDur = 500;
	scrTime = 0;
	scrInt = 10;

	// set interval
	clearInterval(scrollInt);
	scrollInt = setInterval( scrollPage, scrInt );
}

/*
EASING FUNCTIONS
*/

function easeInOut(t,b,c,d)
{
	return c/2 * (1 - Math.cos(Math.PI*t/d)) + b;
}

function strpos(str, ch) {
  return str.indexOf(ch);
}

function validate(myform, valArray) {
  var go=1; 
  for (var i in valArray) {  
    var element = myform[i]; 
    if (element.value=="") { 
      alert("Please fill in "+valArray[i]+" before continuing.");
      go = 0; 
      break; 
    } else if (strpos(i, 'email') != -1) {
	  var retval = validateEmail(element.value);
	  if (retval != 1) {
	    alert("Invalid e-mail address:\n\n"+retval+"\n\nPlease correct "+valArray[i]+" before continuing.");
	    go = 0;
		break;
	  }
	}
  }
  if (go==1) return true; else return false;
}

/* Sandeep Tamhankar */
function validateEmail (emailStr) {
  var emailPat=/^(.+)@(.+)$/
  var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
  var validChars="\[^\\s" + specialChars + "\]"
  var quotedUser="(\"[^\"]*\")"
  var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
  var atom=validChars + '+'
  var word="(" + atom + "|" + quotedUser + ")"
  var userPat=new RegExp("^" + word + "(\\.+" + word + ")*$")
  var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
  var matchArray=emailStr.match(emailPat)
  if (matchArray==null) {
	return "Email address seems incorrect (check @ and .'s)"
  }
  var user=matchArray[1]
  var domain=matchArray[2]
  if (user.match(userPat)==null) {
    return "The email username doesn't seem to be valid."
  }
  var IPArray=domain.match(ipDomainPat)
  if (IPArray!=null) {
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        return "Destination IP address is invalid!"
	    }
    }
    return true
  }

  var domainArray=domain.match(domainPat)
  if (domainArray==null) {
	return "The domain name doesn't seem to be valid."
  }
  var atomPat=new RegExp(atom,"g")
  var domArr=domain.match(atomPat)
  var len=domArr.length
  if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
    return "The address must end in a three-letter domain, or two letter country."
  }
  if (len<2) {
    return "This address is missing a hostname!"
  }
  /* temporarily disabled 
  if (domainArray[0]=="hotmail.com" || domainArray[0]=="yahoo.com")
    return "You have selected a free e-mail address."
  */
    
  return true;
}

function padout(number) { return (number < 10) ? '0' + number : number; }
function in_array(myValue,myArray)
{
    function equals(a,b)
    {
        return (a === b);
    }

    for (var i in myArray)
    {
        if (equals(myArray[i],myValue))
            return true;
    }
    return false;
}