jQuery.fn.birthSelect=function(options){var index=0;var today=new Date();var settings=jQuery.extend({field:"",index:false,year:"18,100"},options);return this.each(function(){var format=settings.format.split("");var obj=$("<span></span>");for(var x in format)
{obj.append(eval(format[x]+".call()"));};$(obj).children("[name*='month']").bind("change",function(e){var q=(new Date($(this).parent().children("[name*='year']").val(),this.value,0)).getDate();var s=$(this).parent().children("[name*='day']");$(s).children("option").show().filter(":gt("+(q-1)+")").hide().end().end().end();if(q<$(s).find(":selected").val()){$(s).find(":nth-child("+q+")").attr("selected","selected").end().end();}}).trigger("change").end().children("[name*='year']").bind("change",function(){$(this).parent().children("[name*='month']").trigger("change").end().end().end();}).end().end();$(this).replaceWith(obj);});function m()
{var n=settings.field+"month"+(settings.index!==false?"["+settings.index+"]":"");return s(n,1,12,(today.getMonth()+1));};function d()
{var n=settings.field+"day"+(settings.index!==false?"["+settings.index+"]":"");return s(n,1,31,today.getDate());};function y()
{var opt=settings.year.split(",");var ys=today.getFullYear();var n=settings.field+"year"+(settings.index!==false?"["+settings.index+"]":"");return s(n,(ys-parseInt(opt[1])),(ys-parseInt(opt[0])),ys);};function s(name,start,end,selected)
{var r="<select name='"+name+"'>";for(var x=start;x<=end;x++)
{r+="<option value='"+x+"' "+(x==selected?"selected":"")+">"+x;};return r+"</select>";}};