function goto_add(number) {

	switch(number){
			case '1':
			     document.location.href= linkto1;
			     break;
			case '2':
			     document.location.href= linkto2;
			     break;
			case '3':
			     document.location.href= linkto3;
			     break;
			case '4':
			     document.location.href= linkto4;
			     break;
	}
}