// JavaScript Document
function showT1() {
	T1_on.style.display = "block";
	T1_off.style.display = "none";
	T2_on.style.display = "none";
	T2_off.style.display = "block";
	T3_on.style.display = "none";
	T3_off.style.display = "block";
	T4_on.style.display = "none";
	T4_off.style.display = "block";
	T1_content.style.display ="block";
	T2_content.style.display ="none";
	T3_content.style.display = "none";
	T4_content.style.display = "none";
}
function showT2() {
	T1_on.style.display = "none";
	T1_off.style.display = "block";
	T2_on.style.display = "block";
	T2_off.style.display = "none";
	T3_on.style.display = "none";
	T3_off.style.display = "block";
	T4_on.style.display = "none";
	T4_off.style.display = "block";
	T1_content.style.display ="none";
	T2_content.style.display ="block";
	T3_content.style.display = "none";
	T4_content.style.display = "none";
}
function showT3() {
	T1_on.style.display = "none";
	T1_off.style.display = "block";
	T2_on.style.display = "none";
	T2_off.style.display = "block";
	T3_on.style.display = "block";
	T3_off.style.display = "none";
	T4_on.style.display = "none";
	T4_off.style.display = "block";
	T1_content.style.display ="none";
	T2_content.style.display ="none";
	T3_content.style.display = "block";
	T4_content.style.display = "none";
}
function showT4() {
	T1_on.style.display = "none";
	T1_off.style.display = "block";
	T2_on.style.display = "none";
	T2_off.style.display = "block";
	T3_on.style.display = "none";
	T3_off.style.display = "block";
	T4_on.style.display = "block";
	T4_off.style.display = "none";
	T1_content.style.display ="none";
	T2_content.style.display ="none";
	T3_content.style.display = "none";
	T4_content.style.display = "block";
}
function showStep1() {
	step1_on.style.display = "block";
	step1_off.style.display = "none";
	step2_on.style.display = "none";
	step2_off.style.display = "block";
	step1td.className = "step_on";
	step2td.className = "step_off";
	step1.style.display = "block";
	step2.style.display = "none";
}
function showStep2() {
	step1_on.style.display = "none";
	step1_off.style.display = "block";
	step2_on.style.display = "block";
	step2_off.style.display = "none";
	step1td.className = "step_off";
	step2td.className = "step_on";
	step1.style.display = "none";
	step2.style.display = "block";
}