// Some simple JS page control functionality 
 
 document.write('<input type="button" id="back" name="back" value="Back" onclick="javascript:history.back();" />');

 
 /* 
 // Dammit, I wish 'history.length' was a reliable value. 
 
if (window.history.length <= 1) {
document.write('<input type="button" id="back" name="back" value="Back" disabled="disabled" />');
}
else {
document.write('<input type="button" id="back" name="back" value="Back" onclick="javascript:history.back();" />');
}

*/