Code hieu ung hoa roi tren nen Blog

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code hiệu ứng nhiều hoa rơi blog CODE HIỆU ỨNG HOA RƠI

( Thêm khối paste vào đặt vào mục thông tin quyền ) -Mã code

sau -<script>

//var pictureSrc = ‘http://img244.imageshack.us/img244/1024/snowbw4.gif’; //the location of the snowflakes//Noel

var pictureSrc = ‘http://s351.photobucket.com/albums/q463/web_tgth/th_Hoadao.gif’; //the location of the snowflakes//Xuân

var pictureWidth = 20; //the width of the snowflakes var pictureHeight = 20; //the height of the snowflakes var numFlakes = 10; //the number of snowflakes

var downSpeed = 0.01; //the falling speed of snowflakes (portion of screen per 100 ms) var lrFlakes = 10; //the speed that the snowflakes should swing from side to side

if( typeof( numFlakes ) != ‘number’ || Math.round( numFlakes ) != numFlakes || numFlakes < ) { numFlakes = 10; }

//draw the snowflakes

for( var x = 0; x < numFlakes; x++ ) { if( document.layers ) { //releave NS4 bug

document.write(‘<layer id=”snFlkDiv’+x+’”><img src=”’+pictureSrc+’”

height=”’+pictureHeight+’” width=”’+pictureWidth+’” alt=”*” border=”0”></layer>’); } else {

document.write(‘<div style=”position:absolute;” id=”snFlkDiv’+x+’”><img src=”’+pictureSrc+’” height=”’+pictureHeight+’” width=”’+pictureWidth+’” alt=”*” border=”0”></div>’);

} }

//calculate initial positions (in portions of browser window size) var xcoords = new Array(), ycoords = new Array(), snFlkTemp; for( var x = 0; x < numFlakes; x++ ) {

xcoords[x] = ( x + ) / ( numFlakes + );

do { snFlkTemp = Math.round( ( numFlakes – ) * Math.random() ); } while( typeof( ycoords[snFlkTemp] ) == ‘number’ );

ycoords[snFlkTemp] = x / numFlakes; }

//now animate

function flakeFall() {

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var scrWidth = 0, scrHeight = 0, scrollHeight = 0, scrollWidth = 0;

//find screen settings for all variations Doing this every time allows for resizing and scrolling if( typeof( window.innerWidth ) == ‘number’ ) { scrWidth = window.innerWidth; scrHeight = window.innerHeight; } else {

if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {

scrWidth = document.documentElement.clientWidth; scrHeight = document.documentElement.clientHeight; } else {

if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { scrWidth = document.body.clientWidth; scrHeight = document.body.clientHeight; } } } if( typeof( window.pageYOffset ) == ‘number’ ) { scrollHeight = pageYOffset; scrollWidth = pageXOffset; } else {

if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) { scrollHeight = document.body.scrollTop; scrollWidth = document.body.scrollLeft; } else {

if( document.documentElement && ( document.documentElement.scrollLeft ||

document.documentElement.scrollTop ) ) { scrollHeight = document.documentElement.scrollTop; scrollWidth = document.documentElement.scrollLeft; } }

}

//move the snowflakes to their new position for( var x = 0; x < numFlakes; x++ ) {

if( ycoords[x] * scrHeight > scrHeight – pictureHeight ) { ycoords[x] = 0; } var divRef = getRefToDivNest(‘snFlkDiv’+x); if( !divRef ) { return; }

if( divRef.style ) { divRef = divRef.style; } var oPix = document.childNodes ? ‘px’ : 0; divRef.top = ( Math.round( ycoords[x] * scrHeight ) + scrollHeight ) + oPix;

divRef.left = ( Math.round( ( ( xcoords[x] * scrWidth ) – ( pictureWidth / ) ) + ( ( scrWidth / ( ( numFlakes + ) * ) ) * ( Math.sin( lrFlakes * ycoords[x] ) – Math.sin( * lrFlakes * ycoords[x] ) ) ) ) + scrollWidth ) + oPix;

ycoords[x] += downSpeed; }}

//DHTML handlers

function getRefToDivNest(divName) {

if( document.layers ) { return document.layers[divName]; } //NS4 if( document[divName] ) { return document[divName]; } //NS4 also

if( document.getElementById ) { return document.getElementById(divName); } //DOM (IE5+, NS6+, Mozilla0.9+, Opera)

if( document.all ) { return document.all[divName]; } //Proprietary DOM – IE4 return false;

}