ns4 = (document.layers)? true:false
  ie4 = (document.all)? true:false
 function init(){
         if (ns4){
		       pm= document.pmorris;
			   ar1= document.pmorris.document.arrow1;
	     	   ar2= document.pmorris.document.arrow2;
			   ar3= document.pmorris.document.arrow3;
			   ar4= document.pmorris.document.arrow4;
			   ar5= document.pmorris.document.arrow5;
			   ar6= document.pmorris.document.arrow6;
			   ar7= document.pmorris.document.arrow7;
               
			 //  ar1= document.arrow1
			 //  ar2= document.arrow2
			  // ar3= document.arrow3
			  // ar4= document.arrow4
			  // ar5= document.arrow5
			  // ar6= document.arrow6
			  // ar7= document.arrow7
			}   
         if (ie4){
	           pm= pmorris.style;
			   ar1= arrow1.style;
			   ar2= arrow2.style;
			   ar3= arrow3.style;
			   ar4= arrow4.style;
			   ar5= arrow5.style;
			   ar6= arrow6.style;
			   ar7= arrow7.style;
			   
			  } 
 }
 
function showMenu(id){
         if (ns4) {document.layers[id].visibility ="show"; }
	    else if (ie4){ document.all[id].style.visibility ="visible";}
	}
	
	
 function hideMenu(id){
    if (ns4) document.layers[id].visibility= "hide";
	   else if (ie4) document.all[id].style.visibility = "hidden";
	   }