function dispMenu(menu)
{	
	if(document.layers)    //NN4+
    {
       document.layers[menu].visibility = "show";
    }
    else if(document.getElementById)      //gecko(NN6) + IE 5+
    {
        var obj = document.getElementById(menu);
        obj.style.visibility = "visible";
    }
    else if(document.all)       // IE 4
    {
        document.all[menu].style.visibility = "visible";
    }
}

function hideMenu(menu)
{	
	if(document.layers)    //NN4+
    {
       document.layers[menu].visibility = "hide";
    }
    else if(document.getElementById)      //gecko(NN6) + IE 5+
    {
        var obj = document.getElementById(menu);
        obj.style.visibility = "hidden";
    }
    else if(document.all)       // IE 4
    {
        document.all[menu].style.visibility = "hidden";
    }
}

function processMenus(page, menu, menu_side)
{
	if(page == "home") {
		hideMenu('home_fun_menu');
		hideMenu('home_fun_menu_side');
		hideMenu('home_req_menu');
		hideMenu('home_req_menu_side');
		hideMenu('home_depts_menu_side');
		hideMenu('home_depts_menu');
	}
	else if(page == "view") {
		hideMenu('view_fun_menu');
		hideMenu('view_fun_menu_side');
		hideMenu('view_req_menu');
		hideMenu('view_req_menu_side'); 
	}
	else if(page == "aboutus") {
		hideMenu('view_fun_menu');
		hideMenu('view_fun_menu_side');
		hideMenu('view_req_menu');
		hideMenu('view_req_menu_side'); 
	}
	else if(page == "advertising") {
		hideMenu('view_fun_menu');
		hideMenu('view_fun_menu_side');
		hideMenu('view_req_menu');
		hideMenu('view_req_menu_side'); 
	}
	
	
	if(menu != "" && menu_side != "") {	
		dispMenu(menu);
		dispMenu(menu_side);
	}

}