请教多个验证条件执行的情况，我想实现判断是那一个submit触发了onsubmit

Question

请教多个验证条件执行的情况，我想实现判断是那一个submit触发了onsubmit
并执行不同的条件。。
function Submit(obj)
{
if(obj.type == "image")
｛
 document.Form1.onsubmit = "return login_check() && checkDate1() && checkDate2()";
｝
else
｛
       document.Form1.onsubmit="return CheckNum()";  
｝           
}

Answer 1

请教多个验证条件执行的情况，我想实现:判断是那一个submit触发了onsubmit
并给onsubmit赋值以执行不同的条件。。
function Submit(obj)
      {
           if(obj.type == "image")
           {
                if(login_check() && checkDate1() && checkDate2())
                {
                    alert(obj.type);
                   // Form1.submit();
                    document.Form1.onsubmit() = true;
                }
                else
                {
                    alert(obj.type+"1");
                    document.Form1.onsubmit() = false;
                }           }
           else
           {
                if(CheckNum())
                    document.Form1.onsubmit() = true;
                else
                    document.Form1.onsubmit() = false;
           } 
           document.Form1.submit();          
      }

Answer 2

请教多个验证条件执行的情况，我想实现:判断是那一个submit触发了onsubmit
并给onsubmit赋值以执行不同的条件。。
function Submit(obj)
      {
           if(obj.type == "image")
           {
                if(login_check() && checkDate1() && checkDate2())
                {
                    alert(obj.type);
                   // Form1.submit();
                    document.Form1.onsubmit = "true";
                }
                else
                {
                    alert(obj.type+"1");
                    document.Form1.onsubmit = "false";
                }           }
           else
           {
                if(CheckNum())
                    document.Form1.onsubmit = "true";
                else
                    document.Form1.onsubmit = "false";
           } 
                     
      }