http://grails.org/plugin/richui

class DataTagLib {

    def data = {attrs, body ->	
        def classe = ""
        if ( attrs.class ){
            classe = "class='"+attrs.class+"'"
        }

        def out = out
        def name = attrs.name    //The name attribute is required for the tag to work seamlessly with grails
        def id = attrs.id ?: name
        def minDate = attrs.minDate
        def showDay = attrs.showDay

        //Create date text field and supporting hidden text fields need by grails
        String aux = Utils.getDataComoString(attrs.value, "dd/MM/yyyy")
        out.println "<input type=\"text\" name=\"${name}_\" id=\"${id}_\" value=\"${aux}\" ${classe} />"
        out.println "<input type=\"hidden\" name=\"${name}\" id=\"${id}\" value=\"data.struct\" />"
        out.println "<input type=\"hidden\" name=\"${name}_day\" id=\"${id}_day\" />"
        out.println "<input type=\"hidden\" name=\"${name}_month\" id=\"${id}_month\" />"
        out.println "<input type=\"hidden\" name=\"${name}_year\" id=\"${id}_year\" />"

        //Code to parse selected date into hidden fields required by grails
        out.println "<script type=\"text/javascript\"> "
        out.println "\$(document).ready(function(){"
        if ( attrs.value ){
            out.println "   \$(\"#${name}_month\").attr(\"value\",\"${Utils.getDataComoString(attrs.value, "MM")}\");"
            out.println "   \$(\"#${name}_day\").attr(\"value\",\"${Utils.getDataComoString(attrs.value, "dd")}\");"
            out.println "   \$(\"#${name}_year\").attr(\"value\",\"${Utils.getDataComoString(attrs.value, "yyyy")}\");"
        }
        out.println "       \$(\"#${name}_\").mask(\"99/99/9999\");"
        out.println "       \$(\"#${name}_\").datepicker({"
        out.println "           onClose: function(dateText, inst) {"
        out.println "               var dia = dateText.substring(0, 2); "
        out.println "               var mes = dateText.substring(3, 5); "
        out.println "               var ano = dateText.substring(6, 10); "
        out.println "               \$(\"#${name}_month\").attr(\"value\",mes);"
        out.println "               \$(\"#${name}_day\").attr(\"value\",dia);"
        out.println "               \$(\"#${name}_year\").attr(\"value\",ano);"
        out.println "           }"

        //If you want to customize using the jQuery UI events add an if block an attribute as follows
        if (minDate != null) {
            out.println "       ,"
            out.println "       minDate: ${minDate}"
        }

        if (showDay != null) {
            out.println "       ,"
            out.println "       beforeShowDay: function(date){"
            out.println "           var day = date.getDay();"
            out.println "           return [day == ${showDay},\"\"];"
            out.println "       }"
        }
        out.println ", changeMonth: true "
		out.println ", changeYear: true "
        out.println "       });"
        out.println "})</script>"
    }
}