get a form value

[forza.stiinta]

hello!
I need a way to exctract the value of a filed in a form - the form is submitting some values, among one called "name" (text)
I have a link outisde the form that i want to go to a page like go.php?name = value where value is the text typed in the form's "name" textfield.
Can this be done?
Thanks!

[DDD]

send it in the query string as a variable. Or do you want the value before it is sent. Either way it can be done with Javascript.

[forza.stiinta]

before it is sent.
i have two ways of sending that name - usifng the form's submit, or using the other link (of course, they have different effect).

[CodeLegion]

Hi,

Have you tried;


var xyz = document.FormName.NameofTextfield.value;
You could then use some of the string methods (http://www.w3schools.com/jsref/jsref_obj_string.asp) coupled with window.location to add the value to the url.

Hope that helps man.

Legion.

[forza.stiinta]

it works, thanks a lot!

[CodeLegion]

No worries man.

[icio]

Have you tried that method in firefox? May not work, I suggest

var value = document.getElementsByName("name")[0].value;
alert(value);

Hope that helps :thumb:

[forza.stiinta]

it worked to read the value..
still i'm such a newbie in javascript...
I need to pass to the function the value of the name textbox and a stirng, then redirect to an address
so i need to pass like this:
function_name(form_textbox, "step=delete&id=2300")

and the function will redirect to main.php?name=textbox_vale&step=delete&id=2300

help. :D

[forza.stiinta]

sorry, i just realize that actually i need to pass the textfield name to the function. it seems that does not work to pass function_name(text202) and read the text202 textbox's value.

[icio]

/**
* Redirect to main.php with a certain query string
* @param string name The name of the form element whose value and name should be added to the query string
* @param string extra Extra for addition to the query string
*/
function redir(name, extra) {
window.location.href = "main.php?"+name+"="+encode(document.getElementsByName(name)[0].value)+"&"+extra;
}

// Usage
redir("textfield_name", "extra=info&more=moreinfo");
// => main.php?textfield_name={textfield_name.value}&extra=info&more=moreinfo

Hope that helps :thumb: