Hey ismailc,
The approach to use is, when the button is clicked, to get it to run a java script function. I gather you're already doing this. This function checks each form element, to see whether it is empty. Let me show you an example from a website I built recently.
The form (the important part) looked like this:
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Name:<input type="text" name="contact"><br>
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<textarea rows="10" cols="60" name="feedback"></textarea><br>
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The code (part of it) looked like this:
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function validate()
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{
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input1=document.forms[0].contact.value;
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input2=document.forms[0].feedback.value;
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if(input1=="")
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{
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alert("Please provide your contact details");
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}
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else if(input2=="")
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{
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alert("You have posted no comments!");
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}
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else
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{
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document.forms[0].submit()
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}
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}
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Of course, here the button is always visible - to make a dynamically appearing button is harder, but since you sound like you're in a bit of a hurry this should be find.
Your button to call the function could be a link or a HTML button. Remember also to give the form somewhere to submit to.
regards,
lars
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