+ value of 2 combo boxes

sdi · Jun 25, 2003

Any help would be greatly appreciated. I am attempting to add the value from the selections in combo boxes and return the results back as the "amount" on the page being viewed. I apologize in advance for being very new to this.

<body>

<select size="1" name="Prod1_Select">
<option selected value="100.00">One</option>
<option value="150.00">Two</option>
<option value="175.00">Three</option>
</select>

<select size="1" name="Prod2_Select">
<option selected value="100.00">One</option>
<option value="150.00">Two</option>
<option value="175.00">Three</option>
</select>

<Script Language="JavaScript">
var amount=Prod1_Select.value + Prod2_Select.value;
return(amount);
</Script>

As you can see I am very lost... what's more is that once this is fixed then I want it to update the amount anytime one of the option values are changed... onChange??? and have no clue how to do it either

Thank you in advance

Brian

greelmo · Jun 25, 2003

put the selects under a form tag and name the form something... when referencing the selects you say:
document.formName.SelectName.Value

Later,
Greelmo

http://www.scriptingsolutions.tk

adam0101 · Jun 26, 2003

Actually Greelmo,
It's document.formName.SelectName[document.formName.SelectName.selectedIndex].value

Adam
while(woman.width>woman.height && wallet.value>0){beer++;vision.blur()};

sdi · Jun 26, 2003

Thanks.. I found an article in the F&Q that helped me out and I have them calculating the values. I have default values selected but have to run them with a "onclick" in the form tags. Then I have a "onchange" in the select tags. It works as is however, rather than have the "onclick" I would rather have it display the defaults when the form opens up. If I replace the "onclick" with "onload" it does nothing for me... anyone have a suggestion?

Brian

sdi · Jun 26, 2003

This is what I have for my script..

function updateval()
{
if(document.microMite.Memory_Select.options[0].value == true) {
return false
}
else
document.microMite.textfield.value=document.microMite.Memory_Select.options[document.microMite.Memory_Select.selectedIndex].value;
document.microMite.textfield1.value=document.microMite.Cpu_Select.options[document.microMite.Cpu_Select.selectedIndex].value;
document.microMite.amount.value=parseFloat(document.microMite.Memory_Select.options[document.microMite.Memory_Select.selectedIndex].value) +
parseFloat(document.microMite.Cpu_Select.options[document.microMite.Cpu_Select.selectedIndex].value);

return true;
}
//-->

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+ value of 2 combo boxes

sdi

Technical User

greelmo

Programmer

adam0101

Programmer

sdi

Technical User

sdi

Technical User

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