https://poweradmin.studyonlinebd.com/powerAdmin/assets/js/gpaBox.js

1function Show_GpaTextBox(ID,txtTextBox1){
2	var sValue;
3	var SID;
4
5	SID=ID.slice(-1);
6	sValue = document.getElementById(ID).options[document.getElementById(ID).options.selectedIndex].value;
7	
8	//No Box
9	if(sValue <= 3 || sValue >= 6){
10	  document.getElementById('Caption_Marks'+SID).innerHTML = "";
11	  document.getElementById(txtTextBox1).style.visibility="hidden";
12	}
13	
14	//GPA Box
15	if(sValue == 4 || sValue == 5){
16	  document.getElementById('Caption_Marks'+SID).innerHTML="GPA";
17	  document.getElementById(txtTextBox1).value= "";
18	  document.getElementById(txtTextBox1).style.visibility="visible";
19	}
20}