javascript 文本框数组并获取值并关注特定字段

Question

<input type="textbox" name="Tue[]" />
<input type="textbox" name="Tue[]" />
<input type="textbox" name="Tue[]" />
<input type="textbox" name="Tue[]" />

am entering invalid values in textbox 3, how to alert message and focus particularly into textbox 3

Answer 1

just add the following function to the onblur event of the textbox

function validateText(event){
var tar_ele = $(event.target);
if(tar_ele.val() is not valid)
tar_ele.focus();

}

<input type="text" name="Tue[]" onblur="validateText(event)"/>