function secBoard(n){
  for(i=0;i<secTable.cells.length;i++)
    secTable.cells[i].className="sec1";
  secTable.cells[n].className="sec2";

  for(i=0;i<mainTable.tBodies.length;i++)
    mainTable.tBodies[i].style.display="none";
  mainTable.tBodies[n].style.display="block";
}


function secBoard4(n){
  for(i=0;i<secTable4.cells.length;i++)
    secTable4.cells[i].className="sec3";
  secTable4.cells[n].className="sec4";

  for(i=0;i<mainTable4.tBodies.length;i++)
    mainTable4.tBodies[i].style.display="none";
  mainTable4.tBodies[n].style.display="block";


}

//验证是否为数字
function isNum(str){
	if (str.length==0){return false;}
	var Letters = "1234567890.";

	for (i=0;i<str.length;i++){
		var CheckChar = str.charAt(i);
		if (Letters.indexOf(CheckChar) == -1){return false;}
	}
	return true;
}

//规范数字
function fixNum(num,roundNum){
	if(isNum(num)){
		var val = parseInt(Math.pow(10,roundNum));
		num = Math.round(num * val)/val;
	}else{
		num = 0;
	}
	return parseFloat(num);
}

//等额本息界面控制
function Dx_showCalcTypeInfo(){
	var obj1 = document.getElementById('rbt_dx_calcType1');
	var obj2 = document.getElementById('rbt_dx_calcType2');
	var obj3 = document.getElementById('div_dx_calcTypeInfo1');
	var obj4 = document.getElementById('div_dx_calcTypeInfo2');
	var obj5 = document.getElementById('txt_dx_totalPrice');

	if(obj1.checked){
		obj3.style.display = 'block';
		obj4.style.display = 'none';
	}
	if(obj2.checked){
		obj3.style.display = 'none';
		obj4.style.display = 'block';
		obj5.value = 0;
	}
}

function Dx_ChangeLoanType(){
	var obj1 = document.getElementById('sel_dx_LoanType');
	var obj2 = document.getElementById('div_dx_loanInfo');
	var obj3 = document.getElementById('div_dx_rate1');
	var obj4 = document.getElementById('div_dx_rate2');
	if(obj1.selectedIndex<2){
		if(obj1.selectedIndex<1){
			obj3.style.display = '';
			obj4.style.display = 'none';
		}else{
			obj4.style.display = '';
			obj3.style.display = 'none';
		}
		obj2.style.display = 'none';
	}else{
		obj4.style.display = '';
		obj3.style.display = 'none';
		obj2.style.display = 'block';
	}
}

//等额本金界面控制
function Dj_showCalcTypeInfo(){
	var obj1 = document.getElementById('rbt_dj_calcType1');
	var obj2 = document.getElementById('rbt_dj_calcType2');
	var obj3 = document.getElementById('div_dj_calcTypeInfo1');
	var obj4 = document.getElementById('div_dj_calcTypeInfo2');
	var obj5 = document.getElementById('txt_dj_totalPrice');

	if(obj1.checked){
		obj3.style.display = 'block';
		obj4.style.display = 'none';
	}
	if(obj2.checked){
		obj3.style.display = 'none';
		obj4.style.display = 'block';
		obj5.value = 0;
	}
}

function Dj_ChangeLoanType(){
	var obj1 = document.getElementById('sel_dj_LoanType');
	var obj2 = document.getElementById('div_dj_loanInfo');
	if(obj1.selectedIndex<2){
		obj2.style.display = 'none';
	}else{
		obj2.style.display = 'block';
	}
}