function changeInputValue(strFormId)
{
	var chosen_value = $("#"+strFormId+" :input").filter(function(index){return $(this).attr("name")=="m";}).attr("value");
	var month = chosen_value.split("-");
	var year = month[1];
	$("#"+strFormId+" :input").filter(function(index){return $(this).attr("name")=="y";}).attr("value", year);
	$("#"+strFormId+" :input[@name=m]").children().filter(function(index){return $(this).attr("value")==chosen_value;}).val(month[0]);
}