var isNN=(navigator.appName.indexOf("Netscape")!=-1);function autoTab(input,len,e){var keyCode=(isNN)?e.which:e.keyCode;var filter=(isNN)?[0,8,9]:[0,8,9,16,17,18,37,38,39,40,46];if(input.value.length>=len&&!containsElement(filter,keyCode))
{input.value=input.value.slice(0,len);input.form[(getIndex(input)+1)%input.form.length].focus();}
function containsElement(arr,ele){var found=false,index=0;while(!found&&index<arr.length)
if(arr[index]==ele)
found=true;else
index++;return found;}
function getIndex(input){var index=-1,i=0,found=false;while(i<input.form.length&&index==-1)
if(input.form[i]==input)index=i;else i++;return index;}
return true;};