tms=new Array()

//Mostra o submenu no mouseover
function over(n){
	if(typeof(tms[n])!="undefined")clearTimeout(tms[n])
	document.getElementById("s"+n).style.visibility="visible"
}
//Esconde o submenu no mouseout
function out(n){
	tms[n]=setTimeout('document.getElementById("s'+n+'").style.visibility="hidden"',500)
}

function checkScreen(){

    var screenW = 640, screenH = 480;
    if (parseInt(navigator.appVersion)>3) {
     screenW = screen.width;
     screenH = screen.height;
    }
    else if (navigator.appName == "Netscape"
        && parseInt(navigator.appVersion)==3
        && navigator.javaEnabled()
       )
    {
     var jToolkit = java.awt.Toolkit.getDefaultToolkit();
     var jScreenSize = jToolkit.getScreenSize();
     screenW = jScreenSize.width;
     screenH = jScreenSize.height;
    }
    if (screenW>=1024){
       layer_coluna_promo.style.visibility = 'visible';
    }
}