function changeIt(d){var e=document.getElementById(d);var c=new Array();c[0]="rollo1";c[1]="rollo2";c[2]="rollo3";var b;var a;for(b=0;b<c.length;b++){if(d==c[b]){e.style.display="block"}else{a=document.getElementById(c[b]);a.style.display="none"}}return};