js 实现post方式传递

var myForm = document.createElement("form");  
  myForm.method="get" ;
  myForm.action = "line_ticket.aspx" ;    
    var myInput = document.createElement("input") ;  
    myInput.setAttribute("name", "id") ;  
    myInput.setAttribute("value", idStr);
    myForm.appendChild(myInput) ;
   
    var myInput2 = document.createElement("input") ;  
    myInput2.setAttribute("name", "fid") ;  
    myInput2.setAttribute("value", fid);
    myForm.appendChild(myInput2) ; 
   
    var myInput3 = document.createElement("input") ;
    myInput3.setAttribute("name", "unlock") ;  
    myInput3.setAttribute("value", unlock); 
    myForm.appendChild(myInput3) ;
   
    var myInput4 = document.createElement("input") ;
    myInput4.setAttribute("name", "Option") ;  
    myInput4.setAttribute("value", "del"); 
    myForm.appendChild(myInput4) ; 
  document.body.appendChild(myForm) ;  
  myForm.submit() ;  
  document.body.removeChild(myForm) ;