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Javascript Problem

 
 


gkornbluth
Veteran

Dec 13, 2011, 4:57 AM

Post #1 of 3 (354 views)
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Javascript Problem Can't Post
I've inherited a Javascript function that does tax calculation based on the State value entered in form a field.
Code
function onchangestate(type){ 
	if(type=='FL'){ 
		tax=total * 0.06; 
		total=total + tax; 
	} 
	 
	else{ 
		 
		total=total ; 
	}	 
	 
	$('#totalcost').html('$' + total); 
 
}
The field code is:
Code
<select  id="state" name="state" onChange="javascript:onchangestate(this.value)"> 
         <option  value="" selected="selected">Select</option> 
         <option id="USA-AL" value="AL" >Alabama (AL)</option> 
         ...more state options... 
        <option id="USA-FL" value="FL" >Florida (FL)</option> 
              <option id="USA-WY" value="WY">Wyoming (WY)</option> 
         ...more state options... 
</select>
This all works fine when the State value (FL or not FL) is selected from the list of options.

I modified the field code to pull the state value from a user record instead of entering it manually with:
Code
<input type="text"   name="state" id="state"  onChange="javascript:onchangestate(this.value)" value="<?php echo htmlspecialchars(@$_REQUEST['state']); ?>" >


The state field now populates from the user record, but I'm guessing that since there are no products selected before field is populated, the function is not called at the appropriate time and I can’t get the tax calculation to work.

Can someone help?

Thanks,

Jerry Kornbluth


Jason
Staff / Moderator


Dec 13, 2011, 10:44 AM

Post #2 of 3 (345 views)
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Re: [gkornbluth] Javascript Problem [In reply to] Can't Post
Hi Jerry,

I think the issue is that the javascript function is only ever triggered when the field changes. Since you're now using a text field, unless they change that value, the function is never called. Is there a reason you change it from a select field to a text field?

You can always put a javascript call to the function directly in the page when it loads and then use PHP to put a value in for the argument.

Hope this helps
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gkornbluth
Veteran

Dec 13, 2011, 12:11 PM

Post #3 of 3 (342 views)
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Re: [Jason] Javascript Problem [In reply to] Can't Post
I changed it because I only wanted the value that was pulled from the current user record. I'll try your approach.

Thanks,

Jerry Kornbluth
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