function r(src) {
	src.style.backgroundColor='#6498B4';
	src.style.color='#FFF';
	handPointer(src);
}

function o(src) {
	src.style.backgroundColor='';
	src.style.color='';
}

function handPointer(src) {
	//stupid Microshaft IE hack
	if (navigator.appName.indexOf("Internet Explorer") == -1) {
		src.style.cursor = "pointer";
	} else {
		src.style.cursor = "hand";
	}
}

function checksubscribe() {
	if(checkaddr(document.getElementById("email").value) == true) {
		document.getElementById('subform').submit();
	} else {
		alert("Please enter a valid email address!");
	}
}

function comment() {
	err = "";
	if(checkaddr(document.getElementById("cemail").value) == false) {
		err = err + "Please enter your email address.\r\n";
	}
	if (document.getElementById("poster").value.length < 2) {
		err = err + "Please enter your name.\r\n";
	}
	if (document.getElementById("title").value.length < 3) {
		err = err + "Please enter a descriptive title for this comment.\r\n";
	}
	if (document.getElementById("text").value.length < 10) {
		err = err + "Please enter a comment!\r\n";
	}
	if (err == "") {
			document.getElementById('commentfrm').submit();
	} else {
		alert("There were a number of problems with your submission:\r\n"+err);
	}
}


function checkfriend() {
	if(checkaddr(document.getElementById("femail").value) == true && checkaddr(document.getElementById("yemail").value) == true && document.getElementById("fname").value.length > 3 && document.getElementById("yname").value.length > 3) {
		document.getElementById('friendform').submit();
	} else {
		alert("Complete all the fields, and ensure both email addresses are valid.");
	}
}
	
function newreport() {
	err = "";
	if (document.getElementById("title").value.length < 3) {
		err = err + "Please enter a descriptive title for this report.\r\n";
	}
	if (document.getElementById("description").value.length < 10) {
		err = err + "Please enter a description for this report.\r\n";
	}
	if (document.getElementById("reporter").value.length < 2) {
		err = err + "Please enter your name.\r\n";
	}
	if (checkaddr(document.getElementById("repemail").value) == false) {
		err = err + "Please enter a valid email address.";
	}
	if (err == "") {
			document.getElementById('reportfrm').submit();
	} else {
		alert("There were a number of problems with your submission:\r\n"+err);
	}
}
	


function checkaddr(what){
	var str = what;
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	    return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	    return false
	 }
	
	 if (str.indexOf(" ")!=-1){
	    return false
	 }

 	 return true
}

// Detect if the browser is IE or not.
// If it is not IE, we assume that the browser is NS.
var IE = document.all?true:false

// If NS -- that is, !IE -- then set up for mouse capture
if (!IE) document.captureEvents(Event.MOUSEMOVE)

// Set-up to use getMouseXY function onMouseMove
document.onmousemove = getMouseXY;

// Temporary variables to hold mouse x-y pos.s
var tempX = 0
var tempY = 0

// Main function to retrieve mouse x-y pos.s

function getMouseXY(e) {
  if (IE) { // grab the x-y pos.s if browser is IE
    tempX = event.clientX + document.body.scrollLeft
    tempY = event.clientY + document.body.scrollTop
  } else {  // grab the x-y pos.s if browser is NS
    tempX = e.pageX
    tempY = e.pageY
  }  
  // catch possible negative values in NS4
  if (tempX < 0){tempX = 0}
  if (tempY < 0){tempY = 0}  
  return true
}

function showdesc(what) {
	what = unescape(what);
	v = document.getElementById('viewer');
	v.innerHTML = what;
	v.style.display = "block";
	if (navigator.appName == "Microsoft Internet Explorer") {
		ww = document.body.clientWidth;
	} else {
		ww = window.outerWidth;
	}
	
	if (tempX+200 > ww) {
		tempX = tempX-(tempX+200-ww);
	}
	v.style.left = tempX+"px";
	v.style.top = tempY+"px";	
}

function hideTip() {
	v = document.getElementById('viewer');
	v.style.display = "none";
}