constr01.js

// var items = <?=CUtil::PhpToJSObject($arResult["ITEMS"])?>;
function Parser(formname) {
  this.formname = formname;
  this.init = function() {
    var instarr = $("#"+this.formname).serializeArray();
    var base = {};
    for (var i in instarr) {
      base[instarr[i].name] = instarr[i].value;
    }
    this.base = base;
  }
  this.checkCredit = function(linkClass) {
    var promise = $.Deferred();
    $.ajax({ type: "POST",
      url: "load.php?act=check_limit",
      data: { fordCode : this.base["g-fordCode-n"].value,
        sum: this.base["g-total-n"].value },
      beforeSend: function() {
        $("a."+linkClass).hide();
        $(".pending").show();
      },
      success: function(result) { promise.resolve(result); }
    });
    return promise;
  }
  this.doApply = function(){
    return $.ajax({ type: "POST", url: "load.php?act=make_order",
          data: { items: JSON.stringify(items),
          	sum: this.base["g-total-n"].value,
          	dat: this.base["g-date-n"].value,
          	com: this.base["ordering-comment"].value,
          	adr: this.base["catalog-sort-option"].value
          	}
      	});
  }
}

var sm = new Parser("ORDER_FORM");
$(".soap-order").on("click", function(){
  sm.init();
  sm.checkCredit("soap-order").done(function(result){
    if (result < 0) { 
      $(".pending").hide();
      $(".checkNo").show();
    } else {
      sm.doApply().done(function(result2){
        $(".pending").hide();
      });
    }
  });
});