This is javascript
Code:
<script type="text/javascript">
	function defaultfn(){
		var x=document.getElementById('task');
        x.disabled=true;
        var y=document.getElementById('category');
        y.disabled=true;
	}
	function enabledorpdown(){
		var a = document.getElementsByName('cb');
		var x=0;
		for(var i=0; i<a.length; i++){
			if(a[i].checked){
				x=1;	
		        break;
			}
		}
		if(x==1){
			var x=document.getElementById('task');
	        x.disabled=false;
	        var y=document.getElementById('category');
	        y.disabled=false;
	        return true;
		}else{
			var x=document.getElementById('task');
	        x.disabled=true;
	        var y=document.getElementById('category');
	        y.disabled=true;
	        alert('please select record');
	        return true;
		}
		return false;
	}
	function gofunction(){
			var x = document.getElementById('status').value;
			if(x!="select"){
				window.location = "showData1.jsp?status="x;							
			}else{
				alert('please select status');
			}
	}
	
</script>
Code:
<td width="70%" align="center" height="400px">
							<div align="left" style="margin-left: 100px">
								<select id="task" style="">
									<option value="select">-select-</option>
									<option value="move">move to</option>
									<option value="copy">copy to</option>
								</select>
								<select id="category">
									<option value="select">-select-</option>
									<option value="student">Student</option>
									<option value="hod">HOD</option>
									<option value="professor">Professor</option>
								</select>
								<input type="button" value="done" onclick=""></input>
								
							</div>
							
							<div align="left" style="margin-left: 690px;margin-top: -26px">
								Status Type:
								<select id="status" style="">
									<option value="select">-select-</option>
									<option value="active">Active</option>
									<option value="inactive">Inactive</option>
								</select>
								<input type="button" value="Go" onclick="gofunction();"></input>
							</div>