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#1
April 6th, 2005, 10:32 AM
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Need help on this javascript
I have this code.
<SCRIPT language=JavaScript> function IVA() { //alert("Entro en IVA"); a = <%=${fila.preciototal_Protocolo}%>; IVA = a*0.17 alert(IVA); return IVA; } </SCRIPT> where ${fila.preciototal_Protocolo} its a value I get from my server doing <c:forEach var="fila" items="${requestScope.factura_persona}"> (this is JSTL) Please help me out. Thanks!
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#2
April 6th, 2005, 11:21 AM
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Is this a Javascript question, or JSTL?
What is this code supposed to do? What does the rendered html end up looking like?
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#3
April 6th, 2005, 11:56 AM
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Quote:
It is a javascript question. What its supposed to do is to calculate a tax. The idea its to get the value from ${fila.preciototal_Protocolo} and multiply it by 0,7 and return that value so I can print it in my page. Its a bill. Thanks!
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#4
April 6th, 2005, 12:17 PM
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So what happens when you run the page?
What does the rendered source code look? A common problem is the server variable isn't passed to the Javascript properly.
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#5
April 6th, 2005, 01:49 PM
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Quote:
I dont know what you mean here sorry. But the page Its not loading I know its the part when I get the server variable because if I comment it it shows me the alert... But I print the server variable outside the script and loads with no problems
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#6
April 6th, 2005, 06:52 PM
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That's cos you can't print server variables into JS like that.
You have to Response.Write() [you are using ASP, right?] it all: Code:
<%
Response.Write("<script tyoe='text/JavaScript'>");
Response.Write("function IVA() {");
Response.Write("//alert('Entro en IVA');");
Response.Write("a = '"& ${fila.preciototal_Protocolo} &"';");
Response.Write("IVA = a*0.17");
Response.Write("alert(IVA);");
Response.Write("return IVA;");
Response.Write("}");
Response.Write("<\/script>");
%>
HTH. <edit>Oh, wait, you aren't using ASP, you'r using jstl. Er, I dunno anything about jstl, but the idea is still the same. Just replace the 'Response.Write();' bits with whatever jstl uses to output stuff.
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