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calling functions from an input box button

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Toka

Toka

Technical User
Sep 5, 2003
3
GB
Hi

I wonder if anyone could help me. I am not very good at Javascript. However I have managed to adapt some code. I have produced 3 different functions.

A user enters a number into an input box and when the user presses the solve button it calls a function.

However I want it to call all 3 function, is this possible?

I tried calling all three within the function and used ";" to seperate them this didn't work.

I tried using if statements but just go erroe message, could anyone help me please

I would be most grateful for any advice available.


Regards

Toka

 
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I would have expected onclick="one();two();three();" to work but if not you can chain them together. If that's not suitable, post the code and I'm sure someone here will make the required adjustment :p

<input onclick=&quot;one()&quot;>

<script>
function one(){
...
two();
}

function two(){
...
three()
}

function three(){
...
}
</script>

----------
I'm willing to trade custom scripts for... [see profile]
 
Upvote 0 Downvote
Basically, i need different calculations to happen if certain numbers are entered.

I may have done this the long way round but it was the only way I new how.

Here is the code it might help explain it better.


<HTML><HEAD><TITLE>Quadratic Equation</TITLE>

<SCRIPT language=JavaScript>


//Function to Convert string to number

function tonum(obj)
{
return parseFloat(obj);
}
//This Function is called when the &quot;Solve&quot; button is pressed
//It again calls the &quot;solve_quad&quot; function
function inputtest(form, button)

{

solve_quad(form);
return;

}


//Function - Solving of Quadratic Equation
function solve_quad(form)
{

//Conversion of all Input values to Numbers

var b =&quot;-&quot; + tonum(form.inputbox2.value);



//Calculation of Discriminent

if (b<=-6 && b>=-20)

{

var d=b*b-(4*0.2253*-194.4);
}

if(d<0)
{
var e=Math.sqrt(-d);
var neg=true;
}
else
{
var e=Math.sqrt(d);
var neg=false;
}

//NEED IF STATEMENT AS ABOVE HERE ALSO FOR 0.2253 ETC
//COULD DO AS 2 FUNCTIONS AND CALL ABOVE

//Calculating Real and Img parts
var f=-b/(2*0.2253);
var g=e/(2*0.2253);
if(neg)
{
form.outputbox1.value=f+&quot;+&quot;+g+&quot;i&quot;;

}
else
{
form.outputbox1.value=f+g;

}

return;
}

//Function - Solving of Quadratic Equation2
function solve_quad2(form)
{

//Conversion of all Input values to Numbers

var b =&quot;-&quot; + tonum(form.inputbox2.value);



//Calculation of Discriminent

if (b<=-21 && b>=-52)

{

var d=b*b-(4*0.2193*-134.6);
}

if(d<0)
{
var e=Math.sqrt(-d);
var neg=true;
}
else
{
var e=Math.sqrt(d);
var neg=false;
}

//NEED IF STATEMENT AS ABOVE HERE ALSO FOR 0.2253 ETC
//COULD DO AS 2 FUNCTIONS AND CALL ABOVE

//Calculating Real and Img parts
var f=-b/(2*0.2193);
var g=e/(2*0.2193);
if(neg)
{
form.outputbox1.value=f+&quot;+&quot;+g+&quot;i&quot;;

}
else
{
form.outputbox1.value=f+g;

}

return;
}

//Function - Solving of Quadratic Equation2
function solve_quad3(form)
{

//Conversion of all Input values to Numbers

var b =&quot;-&quot; + tonum(form.inputbox2.value);



//Calculation of Discriminent

if (b <-52)

{

var d=b*b-(4*4.635);
}

if(d<0)
{
var e=Math.sqrt(-d);
var neg=true;
}
else
{
var e=Math.sqrt(d);
var neg=false;
}

//NEED IF STATEMENT AS ABOVE HERE ALSO FOR 0.2253 ETC
//COULD DO AS 2 FUNCTIONS AND CALL ABOVE

//Calculating Real and Img parts
var f=-b/(2/4.635);
var g=e/(2/4.635);
if(neg)
{
form.outputbox1.value=f+&quot;+&quot;+g+&quot;i&quot;;

}
else
{
form.outputbox1.value=f+g;

}

return;
}

function clearform(form)
{
form.inputbox2.value=&quot;&quot;;
}


</SCRIPT>

</HEAD>
<BODY>
<FORM method=post>

<DIV align=center>
<CENTER><b>Converts Centistokes to SUS</b><BR>
</CENTER></DIV>
<BR>
<DIV align=center>
<CENTER>
<P><BR>CST: <INPUT size=30 name=inputbox2><BR></P></CENTER></DIV>
<DIV align=center>
<CENTER>
<P><BR>SUS: <INPUT size=30 name=outputbox1><BR></P></CENTER></DIV>
<DIV align=center>
<CENTER>
<P><INPUT onclick=inputtest(this.form,this) type=button value=Solve name=C2F> <INPUT onclick=clearForm(this.form) type=reset value=Reset name=second></P></CENTER></DIV></FORM></BODY></HTML>

thanks

kyra
 
Upvote 0 Downvote
If you want to call all 3 functions, change your inputtest function from:

Code: 
function inputtest(form, button)
{
	solve_quad(form);
	return;
}

to:

Code: 
function inputtest(form, button)
{
	solve_quad(form);
	solve_quad2(form);
	solve_quad3(form);
	return;
}

Hope this helps,

Dan

 
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