Sometimes it is necessary to set the focus to the first available form control. The problem is that complex web pages can contain multiple forms and each form individually can contain hidden or disabled elements and controls that cannot accept focus.
The code below iterates through all forms skipping hidden and disabled elements and stops when it finds the first available form control:
function SetToFirstControl() { var bFound = false;
//for each form for (f=0; f < document.forms.length; f++) { //for each element in each form for(i=0; i < document.forms[f].length; i++) { //if it's not a hidden element if (document.forms[f][i].type != "hidden") { //and it's not disabled if (document.forms[f][i].disabled != true) { try { //set the focus to it document.forms[f][i].focus(); var bFound = true; } catch(er) { } } } //if found in this element, stop looking if (bFound == true) break; } //if found in this form, stop looking if (bFound == true) break; } }
dzone
digg 
del.icio.us
stumbleupon