function changeLayout(viewType) {
	
		var objView;
		objView = document.getElementById("gridcontainer"); 
		objGrid = document.getElementById("grid");
       	objlist = document.getElementById("list");			
		objPageView = document.getElementById("pageView");
		
		if(viewType == "gridview")
		{
			objView.className = "gridview";
	        objGrid.className = "gridviewbtn active";
            objlist.className = "listviewbtn";		    
            objPageView.value = "gridview";
				
		}
		else if(viewType == "listview")
		{
			objView.className = "listview";
			objlist.className = "listviewbtn active";
            objGrid.className = "gridviewbtn";			
            objPageView.value = "listview";
		}			
	}