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split the individual validations and complete form validation. generalize the validations, something like here

$("#footer_newsletter").submit(function() {
 var invalidFields = checkForm({"type":"email","name":"some"},
 {"type":"field","name":"some2"});
 // mark fields in 'invalidFields'
});
function checkEmail (email) {
 //validate email and empty field
}
function checkField (field) {
 //validate field
}
function checkForm (jsonArray) {
 var invalidFieldsArray = new Array();
 for(field in jsonArray) {
 if(field.type == 'email') {
 if(checkEmail(field.name) {
 invalidFieldsArray.add(field.name);
 }
 } else if(field.type == 'field') {
 if(checkField(field.name) {
 invalidFieldsArray.add(field.name);
 }
 }
 }
} 
​

http://jsfiddle.net/6Y69Q/2/

split the individual validations and complete form validation. generalize the validations, something like here

$("#footer_newsletter").submit(function() {
 // send all fileds and their types to check form method 
  var invalidFields = checkForm({"type":"email","name":"some"},
 {"type":"field","name":"some2"});
 // it returns only those fields that have invalid data
 // invalidFields var has array of names of fields with invalid data
 
});
function checkEmail (email) {
 //validate single email field, return true if it is a valid email
}
function checkField (field) {
 //validate single field to check if it is empty, return true if it is not empty
}
function checkForm (jsonArray) {
 var invalidFieldsArray = new Array();
 
 // loop through every field details and send it to respective filed validator methods
 for(field in jsonArray) {
 if(field.type == 'email') {
 // returns true if it is valid email
 if(! checkEmail(field.name) {
 // if invalid save to array
 invalidFieldsArray.add(field.name);
 }
 } else if(field.type == 'field') {
 // returns true if it is not empty
 if(! checkField(field.name) {
 // add to array if invalid
 invalidFieldsArray.add(field.name);
 }
 }
 }
return invalidFieldsArray;
} 
​

http://jsfiddle.net/6Y69Q/2/

split the individual validations and complete form validation. generalize the validations, something like here

$("#footer_newsletter").submit(function() {
 var invalidFields = checkForm({"type":"email","name":"some"},
 {"type":"field","name":"some2"});
 // mark fields in 'invalidFields'
});
function checkEmail (email) {
 //validate email and empty field
}
function checkField (field) {
 //validate field
}
function checkForm (jsonArray) {
 var invalidFieldsArray = new Array();
 for(field in jsonArray) {
 if(field.type == 'email') {
 if(checkEmail(field.name) {
 invalidFieldsArray.add(field.name);
 }
 } else if(field.type == 'field') {
 if(checkEmail(field.name) {
 invalidFieldsArray.add(field.name);
 }
 }
 }
} 
​

http://jsfiddle.net/6Y69Q/2/

split the individual validations and complete form validation. generalize the validations, something like here

$("#footer_newsletter").submit(function() {
 var invalidFields = checkForm({"type":"email","name":"some"},
 {"type":"field","name":"some2"});
 // mark fields in 'invalidFields'
});
function checkEmail (email) {
 //validate email and empty field
}
function checkField (field) {
 //validate field
}
function checkForm (jsonArray) {
 var invalidFieldsArray = new Array();
 for(field in jsonArray) {
 if(field.type == 'email') {
 if(checkEmail(field.name) {
 invalidFieldsArray.add(field.name);
 }
 } else if(field.type == 'field') {
 if(checkField(field.name) {
 invalidFieldsArray.add(field.name);
 }
 }
 }
} 
​

http://jsfiddle.net/6Y69Q/2/

split the individual validations and complete form validation. generalize the validations, something like here

http://jsfiddle.net/6Y69Q/2/

split the individual validations and complete form validation. generalize the validations, something like here

$("#footer_newsletter").submit(function() {
 var invalidFields = checkForm({"type":"email","name":"some"},
 {"type":"field","name":"some2"});
 // mark fields in 'invalidFields'
});
function checkEmail (email) {
 //validate email and empty field
}
function checkField (field) {
 //validate field
}
function checkForm (jsonArray) {
 var invalidFieldsArray = new Array();
 for(field in jsonArray) {
 if(field.type == 'email') {
 if(checkEmail(field.name) {
 invalidFieldsArray.add(field.name);
 }
 } else if(field.type == 'field') {
 if(checkEmail(field.name) {
 invalidFieldsArray.add(field.name);
 }
 }
 }
} 
​

http://jsfiddle.net/6Y69Q/2/