View difference between Paste ID: N4kG5M5G and iGeyeeqC

 this.FuncName = function (variable) {
 $.ajax(
                 {
                     type: "POST",
                     url: '/.../...',
                     data: function(variable) {
                         if (variable) {
 				JSON.stringify({ field1: value1, field2: value2 }),
 			} else {
 				JSON.stringify({ field1: value3, field2: value4 }),
 			}
                     },
 		    ...
 		}