function validateform( objform )
{
	var retVal = ( 
		ValidateControl( objform.ProductNo, false, 'number', 'Product Code' )
		&& ( objform.MinPrice == null || ValidateControl( objform.MinPrice, false, 'money', 'Minimum Price' ) )
		&& ( objform.MaxPrice == null || ValidateControl( objform.MaxPrice, false, 'money', 'Maximum Price' ) ) );

	if ( objform.MinPrice != null && objform.MaxPrice != null && 
	        (!isStringEmpty(objform.MinPrice.value) || !isStringEmpty(objform.MaxPrice.value)) 
			&& isStringEmpty(objform.Keyword.value) 
			&& isStringEmpty(objform.CatID.value) 
			&& isStringEmpty(objform.VendorID.value) 
			&& isStringEmpty(objform.ProductNo.value) 
			&& isStringEmpty(objform.VendorCode.value))
	{
		alert('Please enter a keyword, category, manufacturer or product code to begin searching');
		retVal = false;
	}	
	
	if ( retVal )
		objform.btnSubmit.disabled = true;
		
	return retVal;
}

function body_onload()
{
	objFocus( document.SearchForm.Keyword );
}