Alert Box/ Pop Up Problem

[Dave Rowntree]

I am trying to resolve a problem for an alert box. My problem being i have a field that when a certain thing is popualated in this instance a customer note i want a pop up box to alert me which i have using this simple bit of code

<logic:present name="ScratchPadSessionKey" property="customer.notes" scope="session" >
	<div id="disruption">
		<h2>Notes on Customer</h2>
			<script type="text/javascript">
				<!--
					alert('Please read notes on this customer');	
				//-->
			</script>
					
		<p id="disruption-summary">
		<bean:write name="ScratchPadSessionKey" property="customer.notes" scope="session" />
		<html:link action="/ShowCustomerNotes.do"><bean:message key="system.notices.link.text"/></html:link>			
	</p>		
	</div>
</logic:present>

This does work fine but it now means every time i navigate around the system and because a customer is still present with the notes field still populated it alerts me again and everytime i do anything within the application. I know i need to do some sort of function but my javascript knowledge is pretty limited so i would appreciate it if someone could point me in the right direction

[Andy Crane]

Hey Dave,

If you're just trying to get one alert, you can set a boolean flag and just check it when you call the alert.

    
var blnNotAlerted = true;  // sets the default value of this boolean

function alertMeOnce(){
    // just call this function to show the alert,  it'll determine whether it's fired off yet or not
    if(blnNotAlerted){
        alert('Your message here.');
        blnNotAlerted = false;
    }
}

function resetAlert(){
    // make sure you call this when you need to reset it without a page reload
    blnNotAlerted = true;
}

[Eric Pascarello]

Why are you outputting it all the time if you do not want it to show up all the time?

Eric