var showBox;
document.onmouseover = openIt;
posicaoSubmenus(640,15);
function posicaoSubmenus(tamanho)
{
	document.all.submenus.left = (window.screen.width - tamanho)/2;
}
 
function openIt() 
{
	var items = 4 ;
	currEl = window.event.toElement;
   	if (currEl.className == "menu_td" || currEl.className == "blankcl") 
	{
     		newId = currEl.id + "box" ;
      		showBox = eval('document.all.'+newId+'.style');
       		showBox.display = "block";
	}        

	for (i=1; i<=items; i++) 
	{
		openItem = "m" + i + "box";
		elOpen = eval("document.all."+openItem+".style");
		if ((elOpen.display == "block")&&(elOpen != showBox)&&(elOpen.className!="submenus")) 
          		elOpen.display = "none";
 
    	if ( currEl.className!="menu_tab" && currEl.className != "menu_td" && currEl.className != "blankcl" && currEl.className != "blancksb" && currEl.className != "menu_tab") 
		{
			//alert("apagou: " +currEl.className); 
			elOpen.display = "none"  
		} 
   	}
}