function checkform(){

	if (document.getElementById('fromMonth').selectedIndex !=0 || document.getElementById('fromYear').selectedIndex !=0){
		if (document.getElementById('fromMonth').selectedIndex ==0){
		   alert('Please select a from month.');
		   document.getElementById('fromMonth').focus();
		   return false;
		  }
		  if (document.getElementById('fromYear').selectedIndex ==0){
		   alert('Please select a from year.');
		   document.getElementById('fromYear').focus();
		   return false;
		  }
	}
	
	if (document.getElementById('toMonth').selectedIndex !=0 || document.getElementById('toYear').selectedIndex !=0){
		if (document.getElementById('toMonth').selectedIndex ==0){
		   alert('Please select a to month.');
		   document.getElementById('toMonth').focus();
		   return false;
		  }
		  if (document.getElementById('toYear').selectedIndex ==0){
		   alert('Please select a to year.');
		   document.getElementById('toYear').focus();
		   return false;
		  }
	}
	
	
}