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Floating background image script animates any image (or block of HTML) up and down the browser window, staying in view even if the user scrolls the page. Definitely an interesting effect with many uses.

Label: Up-down floating image

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pic191.jpg

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<SCRIPT>
//detecting browser to dynamically write appropriate DIVs/LAYERs
N=(navigator.appName.indexOf('Netscape')!=-1&&parseInt(navigator.appVersion)<5)
S=(navigator.appName.indexOf('Netscape')!=-1&&parseInt(navigator.appVersion)>4.9)
M=(navigator.appName.indexOf('Microsoft')!=-1)



Vis=new Array()
Vis[0]=(M||S) ? "hidden" : "hide"
Vis[1]=(M||S) ? "visible" : "show"

function GetDiv(divId,divY,divX,divW,divH,bCol,visb,zInd){
bkCol=(bCol!="")?((N)?" bgColor="+bCol:";background:"+bCol):""

Styl = (M||S) ? "<DIV" : "<LAYER"

if(M||S){
Styl+=" ID="+divId
Styl+=" style='position:absolute;top:"+divY+";left:"+divX+";width:"+divW+";height:"+divH+bkCol
Styl+=";visibility:"+Vis[visb]+";z-index:"+zInd
Styl+="'>"
}

if(N){
Styl+=" ID="+divId
Styl+=" top="+divY+" left="+divX+" width="+divW+" height="+divH+bkCol
Styl+=" visibility="+Vis[visb]+" z-index="+zInd
Styl+=">"
}
document.writeln(Styl)
}

function EndDiv(){
(M||S)? document.writeln("</DIV>"): document.writeln("</LAYER>")
}

function PutIt(ID,dX,dY){
if(N){
document.layers[ID].left=dX
document.layers[ID].top=dY
}
if(M){
document.all[ID].style.left=dX
document.all[ID].style.top=dY
}
if(S){
document.getElementById(ID).style.left=dX
document.getElementById(ID).style.top=dY
}
}

function ShowHide(ID,vs){
if(N){
document.layers[ID].visibility=Vis[vs]
}
if(M){
document.all[ID].style.visibility=Vis[vs]
}
if(S){
document.getElementById(ID).style.visibility=Vis[vs]
}
}

function Xof(ID){
if(N){
return document.layers[ID].left
}
if(M){
return document.all[ID].style.left
}
if(S){
return document.getElementById(ID).style.left
}
}

function Yof(ID){
if(N){
return document.layers[ID].top
}
if(M){
return document.all[ID].style.top
}
if(S){
return document.getElementById(ID).style.top
}
}



function Zind(ID,zz){
if(N){
document.layers[ID].zIndex=zz
}
if(M){
document.all[ID].style.zIndex=zz
}
if(S){
document.getElementById(ID).style.zIndex=zz
}
}

function ChangeCol(ID,colrx){
if(M)document.all[ID].style.background=colrx
if(N)document.layers[ID].bgColor=colrx
if(S)document.getElementById(ID).style.background=colrx
}

function DivWrite(IdName,Str) {
if (N){
document.layers[IdName].document.write(Str)
document.layers[IdName].document.close()
}
if(M) document.all[IdName].innerHTML=Str
if(S) document.getElementById(IdName).innerHTML=Str
}
</SCRIPT>

<SCRIPT>
GetDiv('Top',0,0,100,100,'pink',1,0)
document.write("Top Place")
EndDiv()
GetDiv('Bottom',4000,0,100,100,'pink',1,0)
document.write("Bottom Place")
EndDiv()
d=50
y=0

function Scroll(){
y+=d
if(y>=3800)d=-50
if(y<=0)d=50
window.scroll(0,y)
}

setInterval('Scroll()',50)

</SCRIPT>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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<BODY background="pic191.jpg">
</BODY>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->