|
//Crosshairs - http://www.btinternet.com/~kurt.grigg/javascript
/*
Paste this link as the last thing on your page, just before </body></html>
<script type="text/javascript" src="crosshairs.js"></script>
To edit the colour, right click on the crosshairs.js file icon and choose edit.
Avoid using a tiled background image. It causes strange CPU strain in Opera.
*/
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>CrossHairs</title>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<meta http-equiv="content-script-type" content="text/javascript">
<meta http-equiv="content-style-type" content="text/css">
<style type="text/css">
<!--
body{
background-color : #ffffff;
}
//-->
</style>
</head>
<body>
<script type="text/javascript">
//Crosshairs - http://www.btinternet.com/~kurt.grigg/javascript
if ((document.getElementById) &&
window.addEventListener || window.attachEvent){
(function(){
var hairCol = "#ff0000";
var d = document;
var my = -10;
var mx = -10;
var r;
var vert = "";
var hori = "";
var idx = document.getElementsByTagName('div').length;
var thehairs = "<div id='ver"+idx+"' style='position:absolute;top:-2px;left:-2px;"
+"height:1px;width:1px;font-size:1px;border-left:dotted 1px "+hairCol+"'><\/div>"
+"<div id='hor"+idx+"' style='position:absolute;top:-2px;left:-2px;"
+"height:1px;width:1px;font-size:1px;border-top:dotted 1px "+hairCol+"'><\/div>";
document.write(thehairs);
var pix = "px";
var domWw = (typeof window.innerWidth == "number");
var domSy = (typeof window.pageYOffset == "number");
if (domWw) r = window;
else{
if (d.documentElement &&
typeof d.documentElement.clientWidth == "number" &&
d.documentElement.clientWidth != 0)
r = d.documentElement;
else{
if (d.body &&
typeof d.body.clientWidth == "number")
r = d.body;
}
}
function hairs(){
if (domWw){
vert.height = r.innerHeight - 2 + pix;
hori.width = '100%';
}
else{
vert.height = r.clientHeight - 2 + pix;
hori.width = r.clientWidth + pix;
}
}
function scrl(yx){
var y,x;
if (domSy){
y = r.pageYOffset;
x = r.pageXOffset;
}
else{
y = r.scrollTop;
x = r.scrollLeft;
}
return (yx == 0)?y:x;
}
function mouse(e){
var msy = (domSy)?window.pageYOffset:0;
if (!e) e = window.event;
if (typeof e.pageY == 'number'){
my = e.pageY - 5 - msy;
mx = e.pageX - 4;
}
else{
my = e.clientY - 6 - msy;
mx = e.clientX - 6;
}
vert.top = scrl(0) + pix;
vert.left = mx + pix;
hori.top = my + scrl(0) + pix;
}
function ani(){
vert.top = scrl(0) + pix;
hori.top = my + scrl(0) + pix;
setTimeout(ani,300);
}
function init(){
vert = document.getElementById("ver"+idx).style;
hori = document.getElementById("hor"+idx).style;
hairs();
ani();
}
if (window.addEventListener){
window.addEventListener("load",init,false);
window.addEventListener("resize",hairs,false);
document.addEventListener("mousemove",mouse,false);
}
else if (window.attachEvent){
window.attachEvent("onload",init);
window.attachEvent("onresize",hairs);
document.attachEvent("onmousemove",mouse);
}
})();
}//End.
</script>
</body>
</html>
|