Optionspanel, jQuery wont execute

Hi.

Im making an optionspanel for a theme im developing. However, when i try to use a jQuery function for a valueslider i use, it does not get executed.. The jQuery code is:

<script type="text/javascript">
jQuery(document).ready(function($) {
	var getvalue_h1 = $( "#modmin-h1" ).attr("value" );
	$( "#mm-h1" ).slider({
		range: "min",
		value: getvalue_h1,
		min: 10,
		max: 30,
		slide: function( event, ui ) {
			$( "#modmin-h1" ).val(ui.value);
			$( "#v-h1" ).html(ui.value + "px");
		}
	});
	$( "#v-h1" ).html($( "#mm-h1" ).slider( "value" ) + "px");
});
</script>

When i run this, the only thing that happens is that it outputs “[object Object]px” in the v-h1 div.. It works flawlessly in my HTML file 🙁 Anyone know whats wrong? Thank you so much in advance!