cod java

<DIV id=dot0
<br>style="VISIBILITY: hidden; WIDTH: 11px; POSITION: absolute; HEIGHT: 11px"><IMG
<br>height=11 src="" width=11></DIV>
<br><DIV id=dot1 style="WIDTH: 11px; POSITION: absolute; HEIGHT: 11px"><I11MG
<br>height=30 src="http://www.gexus.com/latifeh/blog01/duckbee.gif" width=36></DIV>
<br><DIV id=dot2 style="WIDTH: 11px; POSITION: absolute; HEIGHT: 11px"><IMG
<br>height=18 src="http://www.gexus.com/latifeh/blog01/little_rose.gif" width=19></DIV>
<br><DIV id=dot3 style="WIDTH: 11px; POSITION: absolute; HEIGHT: 11px"><IMG
<br>height=18 src="http://www.gexus.com/latifeh/blog01/little_rose.gif" width=19></DIV>
<br><DIV id=dot4 style="WIDTH: 11px; POSITION: absolute; HEIGHT: 11px"><IMG
<br>height=18 src="http://www.gexus.com/latifeh/blog01/little_rose.gif" width=19></DIV>
<br><DIV id=dot5 style="WIDTH: 11px; POSITION: absolute; HEIGHT: 11px"><IMG
<br>height=18 src="http://www.gexus.com/latifeh/blog01/little_rose.gif" width=19></DIV>
<br><DIV id=dot6 style="WIDTH: 11px; POSITION: absolute; HEIGHT: 11px"><IMG
<br>height=18 src="http://www.gexus.com/latifeh/blog01/little_rose.gif" width=19></DIV>
<br>< language=Java>
<br><!-- hide code
<br>
<br>/*
<br>Elastic Trail  (By Philip Winston @ [email protected], URL:http://members.xoom.com/ebullets)
<br> featured on Dynamicdrive.com
<br>For this and 100"s more DHTML s, visit http://dynamicdrive.com
<br>*/
<br>
<br>
<br>// Thanks to Troels Jakobsen <[email protected]>
<br>// for fix which makes it work when the page is scrolled
<br>
<br>var nDots = 7;
<br>if (document.all&&window.print)
<br>document.body.style.cssText="overflow-x:hidden;overflow-y:scroll"
<br>var Xpos = 0;
<br>var Ypos = 0;
<br>
<br>  // fixed time step, no relation to real time
<br>var DELTAT = .01;
<br>  // size of one spring in pixels
<br>var SEGLEN = 10;
<br>  // spring constant, stiffness of springs
<br>var SPRINGK = 10;
<br>  // all the physics is bogus, just picked stuff to
<br>  // make it look okay
<br>var MASS = 1;
<br>var GRAVITY = 50;
<br>var RESISTANCE = 10;
<br>  // stopping criterea to prevent endless jittering
<br>  // doesn"t work when sitting on bottom since floor
<br>  // doesn"t push back so acceleration always as big
<br>  // as gravity
<br>var STOPVEL = 0.1;
<br>var STOPACC = 0.1;
<br>var DOTSIZE = 11;
<br>  // BOUNCE is percent of velocity retained when
<br>  // bouncing off a wall
<br>var BOUNCE = 0.75;
<br>
<br>var isNetscape = navigator.appName=="Netscape";
<br>
<br>  // always on for now, could be played with to
<br>  // let dots fall to botton, get thrown, etc.
<br>var followmouse = true;
<br>
<br>var dots = new Array();
<br>init();
<br>
<br>function init()
<br>{
<br>    var i = 0;
<br>    for (i = 0; i < nDots; i++) {
<br>        dots[i] = new dot(i);
<br>    }
<br>   
<br>    if (!isNetscape) {
<br>        // I only know how to read the locations of the
<br>        // <LI> items in IE
<br>        //skip this for now
<br>        // setInitPositions(dots)
<br>    }
<br>   
<br>    // set their positions
<br>    for (i = 0; i < nDots; i++) {
<br>        dots[i].obj.left = dots[i].X;
<br>        dots[i].obj.top = dots[i].Y;
<br>    }
<br>   
<br>   
<br>    if (isNetscape) {
<br>        // start right away since they are positioned
<br>        // at 0, 0
<br>        startanimate();
<br>    } else {
<br>        // let dots sit there for a few seconds
<br>        // since they"re hiding on the real bullets
<br>        setTimeout("startanimate()", 2000);
<br>    }
<br>}
<br>
<br>
<br>
<br>function dot(i)
<br>{
<br>    this.X = Xpos;
<br>    this.Y = Ypos;
<br>    this.dx = 0;
<br>    this.dy = 0;
<br>    if (isNetscape) { 
<br>        this.obj = eval("document.dot" + i);
<br>    } else {
<br>        this.obj = eval("dot" + i + ".style");
<br>    }
<br>}
<br>
<br>
<br>function startanimate() { 
<br>    setInterval("animate()", 20);
<br>}
<br>
<br>
<br>// This is to line up the bullets with actual LI tags on the page
<br>// Had to add -DOTSIZE to X and 2*DOTSIZE to Y for IE 5, not sure why
<br>// Still doesn"t work great
<br>function setInitPositions(dots)
<br>{
<br>    // initialize dot positions to be on top
<br>    // of the bullets in the <ul>
<br>    var startloc = document.all.tags("LI");
<br>    var i = 0;
<br>    for (i = 0; i < startloc.length && i < (nDots - 1); i++) {
<br>        dots[i+1].X = startloc[i].offsetLeft
<br>            startloc[i].offsetParent.offsetLeft - DOTSIZE;
<br>        dots[i+1].Y = startloc[i].offsetTop +
<br>            startloc[i].offsetParent.offsetTop + 2*DOTSIZE;
<br>    }
<br>    // put 0th dot above 1st (it is hidden)
<br>    dots[0].X = dots[1].X;
<br>    dots[0].Y = dots[1].Y - SEGLEN;
<br>}
<br>
<br>// just save mouse position for animate() to use
<br>function MoveHandler(e)
<br>{
<br>    Xpos = e.pageX;
<br>    Ypos = e.pageY;  
<br>    return true;
<br>}
<br>
<br>// just save mouse position for animate() to use
<br>function MoveHandlerIE() {
<br>    Xpos = window.event.x + document.body.scrollLeft;
<br>    Ypos = window.event.y + document.body.scrollTop;  
<br>}
<br>
<br>if (isNetscape) {
<br>    document.captureEvents(Event.MOUSEMOVE);
<br>    document.onMouseMove = MoveHandler;
<br>} else {
<br>    document.onmousemove = MoveHandlerIE;
<br>}
<br>
<br>
<br>function vec(X, Y)
<br>{
<br>    this.X = X;
<br>    this.Y = Y;
<br>}
<br>
<br>// adds force in X and Y to spring for dot[i] on dot[j]
<br>function springForce(i, j, spring)
<br>{
<br>    var dx = (dots[i].X - dots[j].X);
<br>    var dy = (dots[i].Y - dots[j].Y);
<br>    var len = Math.sqrt(dx*dx + dy*dy);
<br>    if (len > SEGLEN) {
<br>        var springF = SPRINGK * (len - SEGLEN);
<br>        spring.X += (dx / len) * springF;
<br>        spring.Y += (dy / len) * springF;
<br>    }
<br>}
<br>
<br>
<br>function animate() { 
<br>    // dots[0] follows the mouse,
<br>    // though no dot is drawn there
<br>    var start = 0;
<br>    if (followmouse) {
<br>        dots[0].X = Xpos;
<br>        dots[0].Y = Ypos; 
<br>        start = 1;
<br>    }
<br>   
<br>    for (i = start ; i < nDots; i++ ) {
<br>       
<br>        var spring = new vec(0, 0);
<br>        if (i > 0) {
<br>            springForce(i-1, i, spring);
<br>        }
<br>        if (i < (nDots - 1)) {
<br>            springForce(i+1, i, spring);
<br>        }
<br>       
<br>        // air resisitance/friction
<br>        var resist = new vec(-dots[i].dx * RESISTANCE,
<br>            -dots[i].dy * RESISTANCE);
<br>       
<br>        // compute new accel, including gravity
<br>        var accel = new vec((spring.X + resist.X)/ MASS,
<br>            (spring.Y + resist.Y)/ MASS + GRAVITY);
<br>       
<br>        // compute new velocity
<br>        dots[i].dx += (DELTAT * accel.X);
<br>        dots[i].dy += (DELTAT * accel.Y);
<br>       
<br>        // stop dead so it doesn"t jitter when nearly still
<br>        if (Math.abs(dots[i].dx) < STOPVEL &&
<br>            Math.abs(dots[i].dy) < STOPVEL &&
<br>            Math.abs(accel.X) < STOPACC &&
<br>            Math.abs(accel.Y) < STOPACC) {
<br>            dots[i].dx = 0;
<br>            dots[i].dy = 0;
<br>        }
<br>       
<br>        // move to new position
<br>        dots[i].X += dots[i].dx;
<br>        dots[i].Y += dots[i].dy;
<br>       
<br>        // get size of window
<br>        var height, width;
<br>        if (isNetscape) {
<br>            height = window.innerHeight + document.scrollTop;
<br>            width = window.innerWidth + document.scrollLeft;
<br>        } else { 
<br>            height = document.body.clientHeight + document.body.scrollTop;
<br>            width = document.body.clientWidth + document.body.scrollLeft;
<br>        }
<br>       
<br>        // bounce of 3 walls (leave ceiling open)
<br>        if (dots[i].Y >=  height - DOTSIZE - 1) {
<br>            if (dots[i].dy > 0) {
<br>                dots[i].dy = BOUNCE * -dots[i].dy;
<br>            }
<br>            dots[i].Y = height - DOTSIZE - 1;
<br>        }
<br>        if (dots[i].X >= width - DOTSIZE) {
<br>            if (dots[i].dx > 0) {
<br>                dots[i].dx = BOUNCE * -dots[i].dx;
<br>            }
<br>            dots[i].X = width - DOTSIZE - 1;
<br>        }
<br>        if (dots[i].X < 0) {
<br>            if (dots[i].dx < 0) {
<br>                dots[i].dx = BOUNCE * -dots[i].dx;
<br>            }
<br>            dots[i].X = 0;
<br>        }
<br>       
<br>        // move img to new position
<br>        dots[i].obj.left = dots[i].X;   
<br>        dots[i].obj.top =  dots[i].Y;  
<br>    }
<br>}
<br>
<br>// end code hiding -->
<br></>
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