function changeValue(){
var price=0;
 if (document.clg_memberForm.os0.selectedIndex == 0){
	price = 10;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 1){
	price = 20;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 2){
	price = 30;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 3){
	price = 35;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 4){
	price = 50;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 5){
	price = 75;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 6){
	price = 100;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 7){
	price = 200;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 8){
	price = 500;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 9){
	price = 60;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 10){
	price = 150;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 11){
	price = 350;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }else if (document.clg_memberForm.os0.selectedIndex == 12){
	price = 750;
 	document.clg_memberForm.amount.value = price.toFixed(2);
 }
}