function toggleDisplay(div_id) {

 var div_style = null;
 if (document.getElementById) { //DOM-compliant browser

    div_style = document.getElementById(div_id).style;
  
 }
 else if(document.all){ //IE API
 	
 	div_style = document.all[div_id].style;
 	
 }
 
 else if(document.layers){ //Netscape API
 	div_style = document.layers[div_id].style;
 }

  if(!div_style){
  	return true;
  }
  
  if (div_style.display == "block") {

   div_style.display = "none";

   } else {

   div_style.display = "block";

  } 

  return false;





}


function openMenus() {
	
	for(var i = 0;i < menusToOpen.length;i++){
		toggleDisplay(menusToOpen[i]);
	}
	
}