1 | /** |
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2 | * Gets all fields that have the id starting with "_". |
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3 | * It's usefull when you have to validate fields with an ajax call, for example. |
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4 | * Returns an array of elements. |
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5 | */ |
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6 | function get_form_fields(form_id){ |
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7 | var elems = document.forms[form_id].elements; |
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8 | var arr = new Object(); |
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9 | var j = 0; |
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10 | for(var i = 0; i < elems.length; i++){ |
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11 | if(elems[i].id.substr(0,1) == "_"){ |
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12 | // if the element is a radiobutton and is NOT checked, goes to the next element |
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13 | if(elems[i].type == "radio" && !elems[i].checked){ |
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14 | continue; |
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15 | } |
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16 | |
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17 | if(elems[i].type == "select-multiple"){ |
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18 | var selectBoxMultiple = elems[i]; |
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19 | var selectArr = new Array(); |
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20 | for(k = 0; k < elems[i].length; k++){ |
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21 | var option = selectBoxMultiple.options[k]; |
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22 | if(option.selected){ |
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23 | if(option.value != ''){ |
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24 | selectArr.push(option.value); |
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25 | } else { |
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26 | selectArr.push(option.innerHTML); |
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27 | } |
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28 | } |
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29 | } |
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30 | |
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31 | arr[elems[i].id] = selectArr; |
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32 | j++; |
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33 | continue; |
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34 | } |
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35 | |
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36 | // if the element has [] in the end of its name, return its values (or checked elements) like an array |
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37 | if(elems[i].name.substr(-2,2) == "[]"){ |
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38 | elem_name = elems[i].name.substr(0, elems[i].name.length - 2); |
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39 | if(arr[elem_name] == undefined){ |
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40 | arr[elem_name] = new Array(); |
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41 | } |
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42 | |
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43 | if(elems[i].type != "checkbox") |
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44 | arr[elem_name].push(elems[i].value); |
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45 | else if(elems[i].checked) |
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46 | arr[elem_name].push(elems[i].value); |
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47 | j++; |
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48 | continue; |
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49 | } |
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50 | |
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51 | arr[elems[i].id] = elems[i].value; |
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52 | j++; |
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53 | } |
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54 | } |
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55 | return arr; |
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56 | } |
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