function calculate(aa){

var ba=1000;var ca=ba*60;var da=ca*60;var ea=da*24;var fa=ea*7;var mo=eval(aa.month.value);var dy=eval(aa.day.value);var yr=eval(aa.year.value);days1=new Date(yr,mo,dy+44);days2=new Date(yr,mo,dy+179);var ga=days1.getMonth();var ha=days1.getDate();var ia=days1.getYear();if(ia>100&&ia<200)ia+=1900;var ja=days2.getMonth();var ka=days2.getDate();var la=days2.getYear();if(la>100&&la<200)la+=1900;var ma=new Array();ma[0]="01";ma[1]="02";ma[2]="03";ma[3]="04";ma[4]="05";ma[5]="06";ma[6]="07";ma[7]="08";ma[8]="09";ma[9]="10";ma[10]="11";ma[11]="12";ma[12]="13";ma[13]="14";ma[14]="15";ma[15]="16";ma[16]="17";ma[17]="18";ma[18]="19";ma[19]="20";ma[20]="21";ma[21]="22";ma[22]="23";ma[23]="24";ma[24]="25";ma[25]="26";ma[26]="27";ma[27]="28";ma[28]="29";ma[29]="30";ma[30]="31";var na=new Array();na[0]="January";na[1]="February";na[2]="March";na[3]="April";na[4]="May";na[5]="June";na[6]="July";na[7]="August";na[8]="September";na[9]="October";na[10]="November";na[11]="December";aa.period1.value=(na[ga]+" "+ma[ha]+", "+ia);aa.period2.value=(na[ja]+" "+ma[ka]+", "+la);if(aa.period2.value=="May undefined, "+la){aa.period2.value="June 1, "+la}
























































else if(aa.period1.value=="May undefined, "+ia){aa.period1.value="June 1, "+ia;}
if(aa.period2.value=="April 31, "+la){aa.period2.value="May 1, "+la}
else if(aa.period1.value=="April 31, "+ia){aa.period1.value="May 1, "+ia;}
if(aa.period2.value=="March, undefined, "+la){aa.period2.value="April 1, "+la}
else if(aa.period1.value=="March undefined, "+ia){aa.period1.value="April 1, "+ia;}
if(aa.period2.value=="February 29, "+la){aa.period2.value="March 1, "+la;}
else if(aa.period1.value=="February 29, "+ia){aa.period1.value="March 1, "+ia;}
if(aa.period2.value=="January undefined, "+la){aa.period2.value="February 1, "+la}
else if(aa.period1.value=="January undefined, "+ia){aa.period1.value="February 1, "+ia;}
if(aa.period2.value=="December undefined, "+la){aa.period2.value="January 1, "+la}
else if(aa.period1.value=="December undefined, "+ia){aa.period1.value="January 1, "+ia;}
if(aa.period2.value=="November 31, "+la){aa.period2.value="December 1, "+la}
else if(aa.period1.value=="November 31, "+ia){aa.period1.value="December 1, "+ia;}
if(aa.period2.value=="October undefined, "+la){aa.period2.value="November 1, "+la}
else if(aa.period1.value=="October undefined, "+ia){aa.period1.value="November 1, "+ia;}
if(aa.period2.value=="September 31, "+la){aa.period2.value="October 1, "+la}
else if(aa.period1.value=="September 31, "+ia){aa.period1.value="October 1, "+ia;}
if(aa.period2.value=="August undefined, "+la){aa.period2.value="September 1, "+la}
else if(aa.period1.value=="August undefined, "+ia){aa.period1.value="September 1, "+ia;}
if(aa.period2.value=="July undefined, "+la){aa.period2.value="August 1, "+la}
else if(aa.period1.value=="July undefined, "+ia){aa.period1.value="August 1, "+ia;}
if(aa.period2.value=="June 31, "+la){aa.period2.value="July 1, "+la}
else if(aa.period1.value=="June 31, "+ia){aa.period1.value="July 1, "+ia;}}