please help me
I am generating an error message when the user enters an tnransmitter ID which is already assigned. The problem is when I reload this page the message still display on the page. But I want clear this error message when the page reload. Can somebody help me to clear this message. Here is my modified code. <% XMLTagBean dup9450tag = new XMLTagBean(); String msg = "This TXID is assigned"; boolean isdup9450tag = false; String testTx9450Value = ""; for ( int i = 0; i < testTxs.length; ++i ) { if ( true == DeviceIDRange.t9450.equals( testTxs[i].type ) ) { testTx9450Value = testTxs[i].txId; System.out.println("The value of testTx9450Value1 is: " + testTx9450Value + "\n\n"); isdup9450tag = dup9450tag.isAssigned9450Tag( testTx9450Value ); System.out.println("The value of isdup9450tag is: " + isdup9450tag + "\n\n"); if ( true == isdup9450tag ) { testTx9450Value = ""; System.out.println("The value of testTx9450Value2 is: " + testTx9450Value + "\n\n"); } //testTx9450Value = ""; System.out.println("The value of testTx9450Value3 is: " + testTx9450Value + "\n\n"); } else if ( true == DeviceIDRange.tinov.equals( testTxs[i].type ) ) testTxInovValue = testTxs[i].txId; } %> <% if ( testTx9450Value.equals("") ) { %> <tr><td> </td></tr> <tr> <!-- The error text --> <td> <span class="error"><%=msg%></span> </td> </tr> <% //session.removeAttribute( "txid9450.setting.failure" ); } %> <% if ( true == is9450 ) { if( false == isdup9450tag ) { %> <tr> <td width="100px" align="center" class="input-style-4"> <input type="text" name="<%="testTx"+DeviceIDRange.t9450%>" class="input-style-3" value="<%=testTx9450Value%>" size="5" maxlength="5" onChange="testTxCheck( this );"> </td> <td class="input-style-4">9450</td> </tr> <% } else { %> <tr> <td width="100px" align="center" class="input-style-4"> <input type="text" name="<%="testTx"+DeviceIDRange.t9450%>" class="input-style-3" value="" size="5"> </td> <td class="input-style-4">9450</td> </tr> <% }} else { %> <input type="hidden" name="<%="testTx"+DeviceIDRange.t9450%>" value=""> <% } %>