How to use Enter instead of TAB when filling in the form_Form special effects

The key point is tabindex. The design idea is: set a tabindex for each form element, and its value is the value of the tabindex of the previous form element plus one. The function of the function is to first add the current tabindex when the user presses the Enter key. The value of tabindex is increased by one, and then compared with the tabindex value of each form element one by one. If they are equal, the focus is moved to the form element.

First, we need to set an onkeyup event in the form body:

Secondly, set a tabindex value in each form element, assuming that the form There are three elements, then we set the tabindex value as follows:


<br><br>Finally, write the changefocus function as follows: <br>function newinfo_form_onkeyup () <br>{ <br>key=window.event.keyCode; <br>if(key==0xD)//Determine whether the Enter key is pressed <br>{ <br>CurTabIndex=event.srcElement.tabIndex 1//Add 1 to the current tabindex value <br>for (n=0;n<newinfo_form.elements.length>{ <br>if (newinfo_form.elements[n].tabIndex==CurTabIndex) //Find the next form element <br>{ <br>newinfo_form.elements[n].focus(); //Move focus <br>return true; <br>} <br>} <br>} <br> } <br></newinfo_form.elements.length>