function showhide2(objShowHide){
 d=document;layer="";
 if(d.getElementById)layer1=d.getElementById(objShowHide).style;
 else if(d.layers)layer1=document.layers[objShowHide];
 else return 1;
 if(layer1.display=="")layer1.display="none";
 if(layer1.display!="none")layer1.display="none";
 else layer1.display="block";
}