var timeout    = 500;
var closeTimer = 0;
var menu_node  = 0;
var mm_label_BG_ID = 0;
var mm_submenu_ID = 0;

function init (thisPage) {
    disableMenuLink(thisPage);
}

function disableMenuLink(PID)
{
    document.getElementById(PID).href="";
}

function m_open (id) {

    m_cancel_close();
    if (menu_node)
        menu_node.style.visibility = 'hidden';

    menu_node = document.getElementById(id);
    menu_node.style.visibility = 'visible';
    
    //alert(document.getElementById("nav_lab").background);
    
}

function m_close () {

    if (menu_node)
        menu_node.style.visibility = 'hidden';
        
}

function m_closeTime() {

    closeTimer = window.setTimeout (m_close, timeout);
}

function m_cancel_close() {

    if (closeTimer) {
        window.clearTimeout(closeTimer);
        closeTimer = null;
    }
}


function onMainMenu(id)
{
	setIDs(id);
	
	document.getElementById(mm_label_BG_ID).style.background ="url('images/Menu_Tab_r2.png') center center no-repeat";
	document.getElementById(id).style.height = "33px";
	document.getElementById(id).style.paddingTop = "2px";
	document.getElementById(id).style.paddingLeft = "5px";
	document.getElementById(id).style.color = "#000000";
	document.getElementById(id).style.fontWeight = "bold";
	document.getElementById(id).style.fontSize = "11pt";
	
	if (mm_submenu_ID == "m5")
		document.getElementById(mm_submenu_ID).style.background = "url('images/submenu_background_tilestrip_162.png') no-repeat 0px bottom ";
	else if (mm_submenu_ID == "m1")
		document.getElementById(mm_submenu_ID).style.background = "url('images/submenu_background_tilestrip_r2.png') no-repeat 0px bottom";
	else
		document.getElementById(mm_submenu_ID).style.background = "url('images/submenu_background_tilestrip_195.png') no-repeat 0px bottom";
		
	m_open(mm_submenu_ID);

}

function notOnMainMenu(id)
{
	
	setIDs(id);
	
	document.getElementById(mm_label_BG_ID).style.background ="url('') center center no-repeat";
	document.getElementById(id).style.height = "100%";
	document.getElementById(id).style.paddingTop = "";
	document.getElementById(id).style.paddingLeft = "";
	document.getElementById(id).style.color = "#ffffff";
	document.getElementById(id).style.fontWeight = "normal";
	document.getElementById(id).style.fontSize = "12pt";
	document.getElementById(mm_submenu_ID).style.background = "";
	m_close ();
	
	if (mm_submenu_ID == "m5")
		document.getElementById('m5').style.background = "url('images/submenu_background_tilestrip_r2.png') repeat-x right bottom";


}

function setIDs(id)
{
    switch(id){
	    case "nav_lab": 
			mm_label_BG_ID = "mitem1";
			mm_submenu_ID = "m1";
			break;
			
		case "nav_strat":
		 	mm_label_BG_ID = "mitem2";
			mm_submenu_ID = "m2";
			break;
			
		case "nav_prod" :
			mm_label_BG_ID = "mitem3";
			mm_submenu_ID = "m3";
			break;
			
		case "nav_cs" :
			mm_label_BG_ID = "mitem4";
			mm_submenu_ID = "m4";
			break;
		
		case "nav_about" :
			mm_label_BG_ID = "mitem5";
			mm_submenu_ID = "m5";
			break;
						
	}
}



document.onclick = m_close;