JS-validation and serverside events.

Hi,

I am doing some validations ( check if e-mail is filled ) on an input field through JavaScript. If there is a valid entry the serverside event may proceed.

If there isn't an entry I display a pop-up but I don't want to trigger the serverside event.

This is the code for the button :

<htmlb:button id = "order"

text = "<%= otr(zbc10/bestel) %>"

onClick = "me_Order"

onClientClick= "thx_win()"/>

And this is the JS :

function thx_win(){

var cfoo = document.getElementById("wa_head-email").value;

if (cfoo==""){

alert("<%= otr(zbc10/no_email) %>");

return false;

}

else{

thx_win = window.open("http:..../sap/zz_cust_caddie/confirmation2.htm",

"", 'toolbar, width=400,height=150');

}

}

Is there a way of doing this ?

Thanks in advance.

Dirk.