// JavaScript Document
	function cheng(num,n){//四捨五入用function
		var dd=1;
		var tempnum;  
		for(i=0;i<n;i++){  
			dd*=10;
		}
		tempnum=num*dd;  
		tempnum=Math.round(tempnum);  
		return (tempnum/dd);  
	}
	
	function tran(tmp){
		var tmp2 = tmp.split(".") ; 
		tmp = tmp2[0] ; 
		var tmp3=tmp2[1];
		if(typeof(tmp3)=="undefined") tmp3="00";
		var tmp1=Math.round((tmp3/Math.pow(10,tmp3.length))*100);  
		tmp1 = tmp1.toString(); 
		if(tmp1.length==1) tmp1="0"+tmp1 ; 
		
		var signa = 0;
		var ll = tmp.length;
		if(ll%3 == 1){  
			tmp = "00"+tmp; 
			signa = 2;
		}  
		if(ll%3 == 2){  
			tmp = "0"+tmp;
			signa = 1;
		}  
		var tt = (tmp.length)/3; 
		var mm = new Array();  
		for(var i=0;i<tt;i++){  
			mm[i]=tmp.substring(i*3,3+i*3);
		}	
		var vv=""; 
		for(var i=0;i<mm.length;i++){ 
			vv += mm[i] + ",";
		}
		vv=vv.substring(signa,vv.length-1)+"."+tmp1
		return vv;
	}
	
	function cal(){
		var c = true;
		var msg = '';
		var r1,r2,r3,r4,r5,r6;
		B5 = parseFloat(document.getElementById('b5').value);
		C5 = Number(document.getElementById('c5').value);
		D5 = Number(document.getElementById('d5').value);
		E5 = Number(document.getElementById('e5').value);
		if(document.getElementById('b5').value == ''){
			c = false;
			alert('請輸入預定利率!');
			document.getElementById('b5').focus();
		}else if(C5 == ''){
			c = false;
			alert('請輸入應繳年份!');
			document.getElementById('c5').focus();
		}else if(D5 == ''){
			c = false;
			alert('請輸入貸款總金額');
			document.getElementById('d5').focus();
		}else if(E5 == ''){
			c = false;
			alert('請輸入已繳期數');
			document.getElementById('e5').focus();
		}
		if(c){
			r1 = (100*B5/12)/(Math.pow((1+(B5/1200)),(C5*12))-1)+(100*B5/12);
			document.getElementById('rs1').innerHTML = '<strong>'+cheng(r1,2)+'</strong>';
			r2 = D5*r1;
			document.getElementById('rs2').innerHTML = '<strong>'+tran(String(Math.round(r2)))+'</strong>';
			r3 = (r2-D5*100*B5/12)*(Math.pow((1+B5/1200),E5)-1)*1200/B5
			document.getElementById('rs3').innerHTML = '<strong><font color="#FF7200">'+tran(String(Math.round(r3)))+'</font></strong>';
			r4 = D5*10000-r3;
			document.getElementById('rs4').innerHTML = '<strong><font color="#CC0000">'+tran(String(Math.round(r4)))+'</font></strong>';
			r5 = r2*E5;
			document.getElementById('rs5').innerHTML = '<strong><font color="#FF7200">'+tran(String(Math.round(r5)))+'</font></strong>';
			r6 = r5-r3;
			document.getElementById('rs6').innerHTML = '<strong><font color="#FF7200">'+tran(String(Math.round(r6)))+'</font></strong>';
		}
	}
	function cal_reset(){
			document.getElementById('calcu').reset();
			document.getElementById('rs1').innerHTML = '<strong>0</strong>';
			document.getElementById('rs2').innerHTML = '<strong>0</strong>';
			document.getElementById('rs3').innerHTML = '<strong><font color="#FF7200">0</font></strong>';
			document.getElementById('rs4').innerHTML = '<strong><font color="#CC0000">0</font></strong>';
			document.getElementById('rs5').innerHTML = '<strong><font color="#FF7200">0</font></strong>';
			document.getElementById('rs6').innerHTML = '<strong><font color="#FF7200">0</font></strong>';
	}