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GET javascript variable from HTML without putting that variable in it’s own function?

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Jun 11.2008

So basically I’m trying to do:

[CODE]
JAVASCRIPT :
<script type =”text/javascript”>
function nightsmultiplicetxt() {
var NightPricev = 0000
var WeekPricev = 0000
var MonthPricev = 0000
}
</script>

HTML (wrong, but you see what I’m trying to do):
<input name=”calculate3″ type=”button” id=”calculate3″ tabindex=”2″
onclick= document._xclick.nightprice.value= ([U]nightsmultiplicetxt().NightPricev * 50[/U])[/CODE]

…help

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JavaScript

2 Comments(s) ↴

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@XTREEMMAKauthorJun 11.2008 — Found the answer:

Variable scope is incorrect and cant be accessed that way. To correct, simply move the variables outside the function
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@KorJun 11.2008 — to correct pass the parameter to the function and to the calculation [I]inside[/I] that function. Functions are the essence of javascript. Avoid using global variables (variables set outside functions), unless it is imperative.

<i>
</i>&lt;script type ="text/javascript"&gt;
function nightsmultiplicetxt(f,name,q) {
var NightPricev = 12;
var WeekPricev = 13;
var MonthPricev = 14;
f[name].value=NightPricev*q;
}
&lt;/script&gt;
...
&lt;form&gt;
&lt;input name="calculate3" type="button" id="calculate3" tabindex="2" onclick="nightsmultiplicetxt(this.form,'nightprice',50)"&gt;
...
&lt;/form&gt;
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