В Фоксе нету document.body.clientHeightВот тебе 2 функции для определения размера BODY и скроллинга: | Код | /*** Размер BODY ***/ function getBodySize() { var w, h = 0; if (self.innerHeight) { w = self.innerWidth; h = self.innerHeight; } else if (document.documentElement && document.documentElement.clientHeight) { w = document.documentElement.clientWidth; h = document.documentElement.clientHeight; } else if (document.body) { w = document.body.clientWidth; h = document.body.clientHeight; } return {width: w, height: h}; }
/*** Размер скроллинга ***/ function getScrolling() { var x, y = 0; if (self.pageYOffset) { x = self.pageXOffset; y = self.pageYOffset; } else if (document.documentElement && document.documentElement.scrollTop) { x = document.documentElement.scrollLeft; y = document.documentElement.scrollTop; } else if (document.body) { x = document.body.scrollLeft; y = document.body.scrollTop; } return {scrollX: x, scrollY: y}; }
|
функции возвращают объект с полями width, height — для getBodySize() и scrollX, scrollY — для getScrolling()А вообще вот уже давали скрипт, который это делает: | Код | <html> <head> <title>Snowmaker javascript. Falling snow on webpage.</title> <meta http-equiv="Content-Type" content="text/html;charset=windows-1251"> </head>
<body> <script> // CREDITS: // Snowmaker Copyright (c) 2003 Peter Gehrig. All rights reserved. // Distributed by http://www.hypergurl.com // Permission given to use the script provided that this notice remains as is.
// Set the number of snowflakes (more than 30 - 40 not recommended) var snowmax=35
// Set the colors for the snow. Add as many colors as you like var snowcolor=new Array("#aaaacc","#ddddFF","#ccccDD")
// Set the fonts, that create the snowflakes. Add as many fonts as you like var snowtype=new Array("Arial Black","Arial Narrow","Times","Comic Sans MS")
// Set the letter that creates your snowflake (recommended:*) var snowletter="*"
// Set the speed of sinking (recommended values range from 0.3 to 2) var sinkspeed=0.6
// Set the maximal-size of your snowflaxes var snowmaxsize=22
// Set the minimal-size of your snowflaxes var snowminsize=8
// Set the snowing-zone // Set 1 for all-over-snowing, set 2 for left-side-snowing // Set 3 for center-snowing, set 4 for right-side-snowing var snowingzone=1
/////////////////////////////////////////////////////////////////////////// // CONFIGURATION ENDS HERE ///////////////////////////////////////////////////////////////////////////
// Do not edit below this line var snow=new Array() var marginbottom var marginright var timer var i_snow=0 var x_mv=new Array(); var crds=new Array(); var lftrght=new Array(); var browserinfos=navigator.userAgent var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/) var ns6=document.getElementById&&!document.all var opera=browserinfos.match(/Opera/) var browserok=ie5||ns6||opera
function randommaker(range) { rand=Math.floor(range*Math.random()) return rand }
function initsnow() { if (ie5 || opera) { marginbottom = document.body.clientHeight marginright = document.body.clientWidth } else if (ns6) { marginbottom = window.innerHeight marginright = window.innerWidth } var snowsizerange=snowmaxsize-snowminsize for (i=0;i<=snowmax;i++) { crds[i] = 0; lftrght[i] = Math.random()*15; x_mv[i] = 0.03 + Math.random()/10; snow[i]=document.getElementById("s"+i) snow[i].style.fontFamily=snowtype[randommaker(snowtype.length)] snow[i].size=randommaker(snowsizerange)+snowminsize snow[i].style.fontSize=snow[i].size snow[i].style.color=snowcolor[randommaker(snowcolor.length)] snow[i].sink=sinkspeed*snow[i].size/5 if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)} if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)} if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4} if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2} snow[i].posy=randommaker(6*marginbottom-marginbottom-6*snow[i].size) snow[i].style.left=snow[i].posx snow[i].style.top=snow[i].posy } movesnow() }
function movesnow() { for (i=0;i<=snowmax;i++) { crds[i] += x_mv[i]; snow[i].posy+=snow[i].sink snow[i].style.left=snow[i].posx+lftrght[i]*Math.sin(crds[i]); snow[i].style.top=snow[i].posy if (snow[i].posy>=marginbottom-6*snow[i].size || parseInt(snow[i].style.left)>(marginright-3*lftrght[i])){ if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)} if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)} if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4} if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2} snow[i].posy=0 } } var timer=setTimeout("movesnow()",50) }
for (i=0;i<=snowmax;i++) { document.write("<span id='s"+i+"' style='position:absolute;top:-"+snowmaxsize+"'>"+snowletter+"</span>") } if (browserok) { window.onload=initsnow } </script> </body> </html> <!-- This document saved from http://www.hypergurl.com/snowmaker.html --> |
|