function still(time)
 {
    d=new Date();
    diff=0;
    while(diff < time) {
       n=new Date();
       diff=n-d;
    }
}

function divShowAndHide(layerID, action) {
 	if (action == "up") {
		// pause(1000);
		document.getElementById(layerID).style.display = 'none';
	} else {
		 document.getElementById(layerID).style.display = 'block';
  	}
}