Question

I have an input box…

<input type="text" id="search_member" onkeyup="lookup(this.value);">

When I type in the field, it will go to function lookup(). From there I want to get the id of this input. I tried…

var This_id = $(this).attr("id");

but this won’t work. Any suggestions on how I can get the id?

Answer 1

Because you are passing this.value to your lookup() function. It’s better to pass this to your function and then use arg.value to get the value and arg.getAttribute('id') for the id

<input type="text" id="search_member" onkeyup="lookup(this);">

function lookup(arg){
 var id = arg.getAttribute('id');
 var value = arg.value;
 // do your stuff
}