View difference between Paste ID: 5qVYAf9c and

-
+/*
 * Tinh diem trung binh
 * Nguyen Hoang An - 06cntt2 - http://kushm.blogspot.com/
 */
 var 	maMonHK1 	= 	new Array(); // Ma mon hoc HK1
 var 	tinChiHK1 = 	new Array(); // So tin chi HK1
 var	diemHK1 	= 	new Array(); // Diem HK1
 
 var 	maMonHK2 	= 	new Array(); // Ma mon hoc HK2
 var 	tinChiHK2 = 	new Array(); // So tin chi HK2
 var	diemHK2 	= 	new Array(); // Diem HK2
 
 function getDetails(mon,loai){
 	/*
 	* - loai = 1 -> ma mon hoc
 	* - loai = 3 -> ten mon hoc
 	* - loai = 5 -> so tin chi
 	* - loai = 7 -> diem
 	*/
 	if(loai == 1)
 		return mon.childNodes[loai].innerHTML;
 	else
 		return parseInt(mon.childNodes[loai].innerHTML);
 }
 function layThongTinHK(){
 	/*
 	* Lay thong tin cua tung mon: ma mon, so tin chi, diem
 	*/
 	var mon_H1 = document.getElementById("tb_HK1").getElementsByTagName("tr");
 	var mon_H2 = document.getElementById("tb_HK2").getElementsByTagName("tr");
 	var soMon_H1 = mon_H1.length;
 	var soMon_H2 = mon_H2.length;
 	for(i = 1; i< soMon_H1; i++){
 		maMonHK1[i-1] 	= getDetails(mon_H1[i],1);
 		tinChiHK1[i-1] = getDetails(mon_H1[i],5);
 		diemHK1[i-1] 	= getDetails(mon_H1[i],7);
 	}
 	for(i = 1; i< soMon_H2; i++){
 		maMonHK2[i-1] 	= getDetails(mon_H2[i],1);
 		tinChiHK2[i-1] = getDetails(mon_H2[i],5);
 		diemHK2[i-1] 	= getDetails(mon_H2[i],7);
 	}
 }
 
 function tinhDiemHK1(){
 	/*
 	* Tinh diem hoc ky 1
 	*/
 	var tongDiem1 		= 0
 	var tongDiemTL1	= 0;
 	var tongTC1		= 0;
 	var tongTCTL1		= 0;
 	/*
 	* Tinh diem trung binh hoc tap va tich luy trong hoc ky 2
 	*/
 	for(i = 0; i < diemHK1.length; i++){
 		tongDiem1	+= diemHK1[i]*tinChiHK1[i];
 		tongTC1 	+= tinChiHK1[i];
 		if(diemHK1[i]){
 			tongDiemTL1	+= diemHK1[i]*tinChiHK1[i];
 			tongTCTL1	 	+= tinChiHK1[i];
 		}
 	}
 	// Trung binh hoc tap
 	document.getElementById("tb1").innerHTML = tongDiem1/tongTC1;
 	// So tin chi tich luy
 	document.getElementById("tc1").innerHTML = tongTCTL1;
 	// Trung binh tich luy
 	document.getElementById("tbtl1").innerHTML = tongDiemTL1/tongTCTL1;
 }
 function isTrung(ma){
 	/*
 	* Kiem tra mon co trung hay khong
 	*/
 	var j;
 	for(j = 0; j < maMonHK2.length; j++ ){
 		if (ma == maMonHK2[j])
 			return false;
 	}
 	return true;
 }
 function tinhDiemHK2(){
 	/*
 	* Tinh diem hoc ky 2
 	*/
 	var tongDiem2 		= 0
 	var tongDiemTL2	= 0;
 	var tongTC2		= 0;
 	var tongTCTL2		= 0;
 	/*
 	* Tinh diem trung binh hoc tap va tich luy trong hoc ky 2
 	*/
 	for(i = 0; i < diemHK2.length; i++){
 		tongDiem2	+= diemHK2[i]*tinChiHK2[i];
 		tongTC2 	+= tinChiHK2[i];
 		if(diemHK2[i]){
 			tongDiemTL2	+= diemHK2[i]*tinChiHK2[i];
 			tongTCTL2	 	+= tinChiHK2[i];
 		}
 	}
 	/*
 	* Tinh diem tich luy trong hoc ky 1
 	*/
 	for(i = 0; i < maMonHK1.length; i++){
 		if(isTrung(maMonHK1[i]) && diemHK1[i]){
 			tongDiemTL2	+= diemHK1[i]*tinChiHK1[i];
 			tongTCTL2	 	+= tinChiHK1[i];
 		}
 
 	}
 	// Trung binh hoc tap
 	document.getElementById("tb2").innerHTML = tongDiem2/tongTC2;
 	// So tin chi tich luy
 	document.getElementById("tc2").innerHTML = tongTCTL2;
 	// Trung binh tich luy
 	document.getElementById("tbtl2").innerHTML = tongDiemTL2/tongTCTL2;
 }
 function tinhDiem(){
 	/*
 	* Ham tinh toan diem
 	*/
 	layThongTinHK();
 	tinhDiemHK1();
 	tinhDiemHK2();
 }