function hideTabs(tabToShow) {  	
        $('.selection-button').hide();
        document.getElementById("TabCategories").className = "unselected_tab";
        document.getElementById("TabRecent").className = "unselected_tab";
        document.getElementById("TabPopular").className = "unselected_tab";
        document.getElementById("TabAlphabetic").className = "unselected_tab";
        
    }    
    function showTab(tabToShow) {
        hideTabs();
        $('#' + tabToShow).show();       
        document.getElementById("Tab"+tabToShow).className = "selected_tab";
    }
    function submitCategory() {
    	 document.getElementById('formCategory').submit();
    }