window.onload=function(){
  document.getElementById('frm').reset();
}

function getReturn(){

	var depart_date;
	var depart_day;
	var depart_month;
	var depart_year;
	var new_depart_date;
	var return_date;
	
	depart_date = document.forms['frm'].dep_date.value;
	
	depart_day = depart_date.substring(0,2);
	
	depart_month = depart_date.substring(3,5);
	
	depart_year = depart_date.substring(6,10);
	
	new_depart_day = parseInt(depart_day) + 7;
	
	new_depart_month = depart_month;
	
	if(depart_month == 01 || depart_month == 03 || depart_month == 05 || depart_month == 07 || depart_month == 08 || depart_month == 10 || depart_month == 12){
	
		if (new_depart_day > 31){
		
			new_depart_month = parseInt(depart_month) + 1;
			
			//alert (new_depart_month);
			
			new_depart_month = "0" + new_depart_month;
			
			new_depart_day = new_depart_day - 31;
		
		}
	
	}
	
	if(depart_month == 04 || depart_month == 06 || depart_month == 09 || depart_month == 11){
	
		if (new_depart_day > 30){
		
			new_depart_month = parseInt(depart_month) + 1;
			
			//alert (new_depart_month);

			new_depart_month = "0" + new_depart_month;
			
			//alert(new_depart_month);
		
			new_depart_day = new_depart_day - 30;
			
		}
	
	} 
	
	if(depart_month == 02){
	
		if (new_depart_day > 28){
		
			new_depart_month = parseInt(depart_month) + 1;
			
			//alert (new_depart_month);

			new_depart_month = "0" + new_depart_month;
			
			//alert(new_depart_month);
		
			new_depart_day = new_depart_day - 28;
			
		}
	
	}
	
	if (new_depart_day < 10){
	
		new_depart_day = "0" + new_depart_day;
	
	}

	return_date = new_depart_day + "/" + new_depart_month + "/" + depart_year;
	
	document.forms['frm'].ret_date.value = return_date;

}