function createSubjectInput(val){
	var sel = document.getElementById("subject_select");
	var selected_value = sel.options[sel.selectedIndex].value;
	if(selected_value==val){
		document.getElementById("subject").innerHTML = '<input type="text" name="subject" id="txt_subject" class="inputMedium">';
		document.getElementById("txt_subject").focus();
	}

}