tried but not working.
look at resize.png, the red circle indicate the tabs-scroller left and right not appear until I perform a manual page refresh(F5).
i did tried:
    $(window).resize(function(){
        $(.tabsProject).tabs('resize',{});
    });
but it makes my datagrid appear at the bottom of my vertical tabs(bottom.png).
here is my whole code:
$(document).ready(function(){
	$tabsp = $('#tabsProject');
	var pselectedindex = -1;
	var mselectedindex = -1;
	
	
    $(window).resize(function(){
        $tabsp.tabs('resize',{});
    });
	title = $tabsp.tabs('getSelected').panel('options').title;
		
		$tabsp.tabs({
			onSelect: function(title, index){
				if (pselectedindex != index)
				{
				
					var p = $tabsp.tabs('getSelected');  // get the selected tab panel
					var  pid = p.panel('options').id.substr(4);
					pselectedindex = index;
					mselectedindex = -1;
				
					$("div.easyui-tabs").each(function() {
						if($(this).is(':visible'))
							if($(this).attr('id') != 'tabsProject')
								$(this).tabs({
									onSelect: function(title, index){
									
										if (mselectedindex != index){
												var mp = $(this).tabs('getSelected');
												var mid = mp.panel('options').id.substr(5);
											
												mselectedindex = index;
												mp.panel({
													href:'load.do.grid.php?ProjectId='+ pid + '&MaterialId='+ mid
													
												})
										}
									}
								})
								
								
								
					});