Why doesn't cURL change the value?

[Fernand]

\[code\]<form class="form" action="" method="post"> <p><input class="inputtext" type="text" name="username" value="http://stackoverflow.com/questions/14077929/Foobar" onFocus="if(this.value http://stackoverflow.com/questions/14077929/=='Foobar'){this.valuehttp://stackoverflow.com/questions/14077929/= '';}" onBlur="if(this.value =http://stackoverflow.com/questions/14077929/=''){this.valuehttp://stackoverflow.com/questions/14077929/= 'Foobar';}" onclick="if(this.value http://stackoverflow.com/questions/14077929/=='Foobar'){this.valuehttp://stackoverflow.com/questions/14077929/= '';}"/></p><br/> <p><input class="inputtext" type="password" name="password" value="http://stackoverflow.com/questions/14077929/randomechar" onFocus="if(this.value http://stackoverflow.com/questions/14077929/=='randomechar'){this.valuehttp://stackoverflow.com/questions/14077929/= '';}" onBlur="if(this.value =http://stackoverflow.com/questions/14077929/=''){this.valuehttp://stackoverflow.com/questions/14077929/= 'randomechar';}" onclick="if(this.value http://stackoverflow.com/questions/14077929/=='randomechar'){this.valuehttp://stackoverflow.com/questions/14077929/= '';}"/></p></br> <p><input type="submit" name="submit" value="http://stackoverflow.com/questions/14077929/Login" id="loginbutton"/></p></form>\[/code\]My cURL:\[code\]curl -F "user=Test" www.website.com/\[/code\]Value stays as "Foobar", I've tried -d and --form, too.