// JavaScript Document  
   var intDelay=30;
   var intInterval=5;
   var margin_Interval=150;
  function menuShow(anum)
    {
     document.getElementById("submenu_"+anum).filters.alpha.opacity+=intInterval;
     if (document.getElementById("submenu_"+anum).filters.alpha.opacity<100) 
          {
               setTimeout("menuShow("+anum+")",intDelay);
		  }
    } 
 function sw(num)
		   {  
		      show_over();				  
		      for(i=1;i<=xyz_num;i++)//定义计数
			  {
				    
				  if(num==1 || num==6)//定义是否显子菜单
				    {
					  return;
					}
				   			       
			     if(i==num)
				 {	
				   // document.getElementById("menu_"+i).className="menu_title";				   
				    document.getElementById("mainmenu").style.marginLeft=(margin_Interval*(i-1))+"px"	;				
				    document.getElementById("submenu_"+i).style.display=""	;
					if(document.all)
					{
				      menuShow(i);
					}else{
										
							}
					
					
				 }else
				 {
					 // document.getElementById("menu_"+i).className="m_item";	
				     document.getElementById("submenu_"+i).style.display="none";
				 }
				 
			  }			  
			  
		   }
		   
		   function itme_bg(num1,num2,num3)
		   {
			   for(i=1;i<=num3;i++)
			   {
				     if(i==num2)					  
					 {						
						 document.getElementById("item_"+num1+"_"+i).style.background="#FF9900";
						 
					 }else
					 {
						 document.getElementById("item_"+num1+"_"+i).style.background="#474747";
						 
					 }
			   }
			   
		   }
		   
		   function show_over()
		    {
			  document.getElementById("mainmenu").style.display=""	;		  
		      clearInterval(xyz)	;
		    } 		   
		   function hidden_out()
		      {
				 xyz=setInterval(hidMenu,1000);
			  }
		   function hidMenu()
		    {
		        document.getElementById("mainmenu").style.display="none";		
				clearInterval(xyz);
				 for(i=1;i<=xyz_num;i++)//定义计数
				 {
					 //document.getElementById("menu_"+i).className="m_item";	
					 if(document.all)
					 {
						document.getElementById("submenu_"+i).filters.alpha.opacity=0; 
						document.getElementById("submenu_"+i).style.display="none"	;
					 }
					 else
					 {
						 document.getElementById("submenu_"+i).style.display="none"	;
						 }
					 
				  }
			 }