function setfocus() 
                                 {
                              if (document.getElementById('focus'))
                              {
                                 document.getElementById('focus').focus(); 
                              }
                                 }


  
  
function check()
{
	
	if (document.getElementById('bid')) {
	
		if (document.getElementById('bid').options[document.getElementById('bid').selectedIndex].value == '0') {
			document.getElementById('checktimes').disabled = true;
		}
		
		else {
			document.getElementById('checktimes').disabled = false;
		}
	}
}
                                
function init()
{
	
setfocus()
check()


 if (document.getElementById('bid')) {

 	document.getElementById('bid').onchange = check
 }	
}
					
window.onload=init