<html>
<head>
<script>
function setComboBoxValue()
{
var courseId=document.getElementById("courseId");
var course=document.getElementById("course").value;
for (var i = 0; i < courseId.options.length; i++) {
if (courseId.options[i].text== course.toUpperCase()) {
courseId.options[i].selected = true;
return;
}
}
}
</script>
<body><center>
Enter BCA/MCA/BE to set<input type="text" id="course">
<select id="courseId" >
<option value="bca">BCA</option>
<option value="mca">MCA</option>
<option value="be">BE</option>
</select><center>
<input type="button" value="click" onClick="setComboBoxValue()" >
</body>
</html>