Hello, Thanks, for your answer. I think that I didn't give a good explanation.
I found my answer, because I wanted to keep the update of the value. Your solution is good, but the value wasn't dynamic. I use "eval". param : [ "$('field').value" ] function (element) { var test = eval(element.param[0]); alert(test); } best regards. 2012/12/3 Walter Lee Davis <wa...@wdstudio.com> > Leave the quotes off of the variable when you are setting the value, and > you should have it working (assuming that "field" is the ID of an input on > your page. It's also safer to use $('field').getValue() or the shortcut > $F('field') because that works around some edge cases in older browsers. > > Walter > > On Dec 2, 2012, at 3:55 PM, Laurent Barre wrote: > > > Hi, > > > > I don't know,it's possible ? > > > > I have this : > > > > param : { field_value : "$('field').value" } > > > > > > and in function I try to : > > > > alert(param.field_value); > > > > but the reponse is the string $('field').value. > > > > I'd like have the value of the field. > > > > > > Regards > > > > > > > > > > -- > > You received this message because you are subscribed to the Google > Groups "Prototype & script.aculo.us" group. > > To post to this group, send email to > prototype-scriptaculous@googlegroups.com. > > To unsubscribe from this group, send email to > prototype-scriptaculous+unsubscr...@googlegroups.com. > > For more options, visit this group at > http://groups.google.com/group/prototype-scriptaculous?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Prototype & script.aculo.us" group. > To post to this group, send email to > prototype-scriptaculous@googlegroups.com. > To unsubscribe from this group, send email to > prototype-scriptaculous+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/prototype-scriptaculous?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Prototype & script.aculo.us" group. To post to this group, send email to prototype-scriptaculous@googlegroups.com. To unsubscribe from this group, send email to prototype-scriptaculous+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/prototype-scriptaculous?hl=en.