passing multiple variables to js function

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passing multiple variables to js function

QWERTY674567576

Hello, my English is not at his best but I will try...

<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function myFunction(var1,var2)
{
alert(var1 + " & " + var2);
}
</script>
</head>

<body>
Username:&nbsp;&nbsp;<INPUT Type="Text" Maxlength=11 Name="UsernameField" Style="WIDTH: 80px; HEIGHT: 20px" Size=11 Id="Username"/>&nbsp;
Pass:&nbsp;<INPUT Type="Password" Maxlength=11 Name="PasswordField" Style="WIDTH: 80px; HEIGHT: 20px" Size=11 Id="Password" /> <BR>
<button onclick="myFunction(form.UsernameField.value,form.PasswordField.value)">Login</button>

<p>By clicking the button above, a function will be called. The function will alert a message.</p>

</body>
</html>

Like you can see, i pass 2 variables to a js function and with that function, i will display them, something goes wrong, you know?

Thank you in advance

toicontien

The "form" variable has not been defined anywhere. Additionally, you do not have a <form> element in your page. Start by wrapping your form fields and buttons in <form> tags, then change your function call to:

myFunction(this.form.UsernameField.value, this.form.PasswordField.value);

When the onclick executes, "this" points to the <button> tag, which has a form property pointing to the form that contains the button.

QWERTY674567576

WOW, it works, thank you very mutch!!!

QWERTY674567576

New Problem, i tested on a new html page and it works, but now i putted it in my page, i can''t get it work, here is the code for the input boxes:

<DIV Class="transbox"><P>
<DIV Align="Right">
<Form Name="Login">
Username:&nbsp;&nbsp;<INPUT Type="Text" Maxlength=11 Name="UsernameField" Style="WIDTH: 80px; HEIGHT: 20px" Size=11 Id="Username"/>&nbsp;
Pass:&nbsp;<INPUT Type="Password" Maxlength=11 Name="PasswordField" Style="WIDTH: 80px; HEIGHT: 20px" Size=11 Id="Password" /> <BR>
</Form>
<FORM NAME="this">
Onthoud:&nbsp;&nbsp;<INPUT TYPE="checkbox" NAME="check1" VALUE="Check1">Username&nbsp;&nbsp;
&nbsp;&nbsp;en/of&nbsp;&nbsp;&nbsp;<INPUT TYPE="checkbox" NAME="check2" VALUE="Check2">Password&nbsp;&nbsp;&nbsp;&nbsp;<BR>
<A Href="">Password vergeten?</A>&nbsp;&nbsp;<INPUT TYPE="button" VALUE="Click" onClick="testButton(this.form, this.form.UsernameField.value, this.form.PasswordField.value)">
</FORM></DIV></P></DIV>

And here is the code for the function:

<SCRIPT Language="Text/JavaScript">
function testButton(form, Username, Password) {
     var alertStr = "";

 for (Count = 0; Count < 2; Count++) {
      if (form[Count].checked) alertStr += "CheckBox " + (Count + 1) + " is checked";
 }

 // if (alertStr == "") alertStr = "No CheckBox was selected";
 if (!alertStr) alertStr = "No CheckBox was selected";

 alert(alertStr);
 if (alertStr == "No CheckBox was selected")
 {
 }
 else if(alertStr == "CheckBox 1 is checkedCheckBox 2 is checked")
 {
	alert(Username + " & " + Password)
 }
 else if(alertStr == "CheckBox 1 is checked")
 {
	alert("Username: " + Username)
 }
 else if(alertStr == "CheckBox 2 is checked")
 {
	alert("Password: " + Password)
 }
}

</SCRIPT>

Please help me with my last question!!!!!

toicontien

Are you getting a JavaScript error? If so, please post it. Can you also explain a little more about how this is failing?

QWERTY674567576

Just when i click at the button, nothing happends, and i don't get a javascript error, just nothing happends, while when i only send 1 variable to a function, everything goes fine, try this code yourself and you will probably see!

toicontien

The <input>s and <button> need to be inside the same <form>

<DIV Class="transbox">
	<P>
		<DIV Align="Right">
			<Form Name="Login">
				Username:&nbsp;&nbsp;<INPUT Type="Text" Maxlength=11 Name="UsernameField" Style="WIDTH: 80px; HEIGHT: 20px" Size=11 Id="Username"/>&nbsp;
				Pass:&nbsp;<INPUT Type="Password" Maxlength=11 Name="PasswordField" Style="WIDTH: 80px; HEIGHT: 20px" Size=11 Id="Password" /> <BR>
				Onthoud:&nbsp;&nbsp;<INPUT TYPE="checkbox" NAME="check1" VALUE="Check1">Username&nbsp;&nbsp;
				&nbsp;&nbsp;en/of&nbsp;&nbsp;&nbsp;<INPUT TYPE="checkbox" NAME="check2" VALUE="Check2">Password&nbsp;&nbsp;&nbsp;&nbsp;<BR>
				<A Href="">Password vergeten?</A>&nbsp;&nbsp;<INPUT TYPE="button" VALUE="Click" onClick="testButton(this.form, this.form.UsernameField.value, this.form.PasswordField.value)">
			</FORM>
		</DIV>
	</P>
</DIV>