blood bank management system project in java

JavaScript function for validating userid function userid_validation(uid,mx,my) Var ufsex = if(userid_validation(uid,5,12)) This function calls all other functions used for validation. JavaScript function which is called on onSubmit You may add any number of countries in the list.įont-family:Verdana, Arial, Helvetica, sans-serif Notice that for validation, the JavaScript function containing the code to validate is called on the onSubmit event of the form.įor the sake of demonstration, we have taken five countries only. js-form-validation.css is the stylesheet containing styles for the form. Sample-registration-form-validation.js is the external JavaScript file which contains the JavaScript ocde used to validate the form. Use tab keys to move from one input field to the next. JavaScript Form Validation using a sample registration form

HTML Code of the Sample Registration Form The later JavaScript function created is called on the onsubmit event of the form.

When the user does so, they may proceed and can supply value to the next available field. It sets the focus to the input field until the user supplies a valid value. We will create JavaScript functions (one for each input field whose value is to validate) which check whether a value submitted by user passes the validation.Īll those functions are called from another function. The tutorial explores JavaScript validation on submit with detail explanation.įollowing pictorial shows in which field, what validation we want to impose. In this document, we have discussed JavaScript Form Validation using a sample registration form.

Blood bank management system project in java