Disable edit on fields on a SharePoint form

<SCRIPT language=javascript>
function DisableField(title)
{
    for(var i = 0; i < document.all.length; i++)
    {
        var el = document.all[i];
        if(el.title == title)
        {
            el.readOnly = true;
            break;
        }
    }
}
DisableField("Bay");
DisableField("Pos");
DisableField("Status");
</SCRIPT>

Hide SharePoint Field on Form

this script will hide the fields selected



<script language="javascript" type="text/javascript" src="SITE/Images1/jquery-1.3.2.min.js"></script>
<script language="javascript" type="text/javascript">
 $(document).ready(function() {
$("input[Title='Pos']").parents('tr:first').hide();
$("input[Title='Delete Item']").parents('tr:first').hide();

 });
// this script below till set default value in a edit form
jQuery("select[title$=Status] option[value='Occupied']").attr("selected", "selected");
jQuery("select[title$=Occupancy Hours] option[value='9']").attr("selected", "selected");
</script>