jquery: Different div heights for firefox / ie , but

Hi all,

I am trying to set the height of two divs equal to each other. The following code works in IE, and it works in firefox when i uncomment the alert???

	test = $("#contentarea").height();
	//alert(test);
    if($('#contentarea').height() > $('#quote').height())
    {
        $('#quote').css({
            'height':$('#contentarea').height()
        });
    }
    else if($('#quote').height() > $('#maincontent').height())
    {
        $('#maincontent').css({
            'height':$('#quote').height()
        });
    }

Code (markup):

The test variable returns two different values for firefox (336 px) and ie (546px)???

any tips?