fade in images script not working right

fade in images script not working right

Hi, old to html css, new to jquery.

All i want is a picture to fade in after it has loaded, i found the following script on this forum somewhere but the picture loads in normally then faded out, it doesnt just fade in and stop.

[code]
<script type="text/javascript">
$(document).ready(function(){
$("#Picture").fadeIn(600);
});
</script>

<img id="Picture" onload="fade()" src="art/heading.jpg" />
[/code]

Please help i have no idea about javascript yet, this might be what gets me started!