jQuery.fn.template = function(type){
   
   $(this).focus(function() { 
							var len = $(this).val().length
							var path = "url(/images/field_templates/"+type+"_"+len+".png)";
							$(this).css("background-image", path);
							$(this).css("background-repeat", "no-repeat");
						  });
   
   $(this).keyup(function() { 
							var len = $(this).val().length
							var path = "url(/images/field_templates/"+type+"_"+len+".png)";
							$(this).css("background-image", path);
							$(this).css("background-repeat", "no-repeat");
						  });
   
   $(this).blur(function() { 
						 	$(this).css("background-image", "");
						 });
   
};