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Make a rollover image behave as an HTML button to carry over POST data

Posted on 2004-04-03
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Last Modified: 2011-09-20
I'm having difficulties with a rollover image with JS.  This means that it behaves as a link rather than a button and does not allow me to carry over form’s POST info.  I wish I could, but I can't just use a button (that would make my life too easy) and I'm stuck having to use images which were already approved by the client.

Thanks guys,
Kasia
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Question by:kasiencja
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Author Comment

by:kasiencja
Comment Utility
Never mind...

I did some research while waiting and found this to work.


<script language="JavaScript" type="text/JavaScript">
<!--
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function submitForm() {
  document.form.submit();
}
//-->
</script>


<img src="Images/Buttons/login.jpg" name="Login" alt="Login" width="70" height="22" id="Image1" onClick=submitForm() onMouseOver="MM_swapImage('Image1','','Images/Buttons/login_on.jpg',1)" onMouseOut="MM_swapImgRestore()">
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