jquery in shatepoint 2010 and IE8

I have written simple jquery script to show specified rows on my list. Code looks like this:

<style type="text/css">
.ms-listviewtable tr{
	display: none;
}
</style>

<script type="text/javascript">


$(document).ready(function() {
	
	var myvar = $('.ms-viewheadertr');
	var myvar2 = $(".ms-listviewtable tr td:contains('Development')");

	myvar2.parent().prev().css("display", "table-row");
	myvar2.parent().css("display", "table-row");
	myvar2.parent().next().css("display", "table-row");
	myvar.css("display", "table-row");

});</script>


</script>

Everything works perfectly in Chrome, FF and some other popular browsers except IE8 where the whole table is hidden. In developer tools i can see that Document mode is IE7 Standards. When i change this property to IE8, it works. Mayby there is a way to force this document to open in IE8 standards? I have 

<meta http-equiv="X-UA-Compatible" content="IE=7" />

tag in my code and i can't change it.

thanks in advance