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multiple location random onload image swap

 
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I need some help from you folks. I am try to setup a three instance image swap on a website. anyone have any good ideas to acomplish this.
 
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Basic idea:

<img src="orgImage.src" alt="foo" onmouseover="this.src='newImage.gif'" onmmouseout="this.src='orgImage.src'" />

You probably want to look into an image preloader. Plenty of eamples of image swap with preloader if you search google.

Eric
 
Tony Lavalle
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is it possible to do it as a random swap. Basically I have 3 spots and a few images to share with the spots. I know how to setup a javascript array for images, but thats about it I just can not seem to get it.
 
Eric Pascarello
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Math.random() and your array and document.getElementById("imgId").src= imgArray[yourRandomNumber];

Eric
 
Tony Lavalle
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ok here is what i got, but i need help to get it to change every so often.

pic_width=165;
pic_height=200;
border_size=0;
alignment=1;

/* define image urls */

if (document.images)
{
pic1= new Image(pic_width,pic_height);
pic1.src="/images/1.png";
pic2= new Image(pic_width,pic_height);
pic2.src="/images/2.png";
pic3= new Image(pic_width,pic_height);
pic3.src="/images/3.png";

}



if (alignment==1)
{
cent_it="<center>";
cent_it2="</center>";
}
else
{
cent_it="";
cent_it2="";
}

function get_random(maxNum)
{
if (Math.random && Math.round)
{
var ranNum= Math.round(Math.random()*(maxNum-1));
ranNum+=1;
return ranNum;
}
else
{
today= new Date();
hours= today.getHours();
mins= today.getMinutes();
secn= today.getSeconds();
if (hours==19)
hours=18;
var ranNum= (((hours+1)*(mins+1)*secn)%maxNum)+1;
return ranNum;
}
}

function get_Image()
{
if (document.images)
{
var choose_one= get_random(3);
choose_one--;

var pics= new Array(3)
pics[0]=pic1.src;
pics[1]=pic2.src;
pics[2]=pic3.src;


document.write(cent_it+"<img src='"+pics[choose_one]+"' width='"+pic_width+"' height='"+pic_height+"' border='"+border_size+"'>"+cent_it2);
}
}


this is in the body of the page

<div id="Layer1">
<script type="text/javascript">
<!--
get_Image()
//-->
</script></div>
<div id="Layer2">
<script type="text/javascript">
<!--
get_Image()
//-->
</script></div>
<div id="Layer3">
<script type="text/javascript">
<!--
get_Image()
//-->
</script></div>
 
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