form - js-zugriff auf input type image element

[schildi]

aso. der verbesserte code:

  
function getImageSubmitButton(/*String*/ formName)  
{  
 var f = document.forms[formName];  
 var c = f.childNodes;  
 var imageInputElement = null;  
 search:  
 for(var i1 in c)  
 {  
  if(c[i1].nodeName == "INPUT")  
  {  
   var a = c[i1].attributes;  
   for(var i2 in a)  
   {  
    var n = a[i2].name;  
    var av = a[i2].nodeValue;  
    if(n == "type" && av == "image")  
    {  
     //image input element gefunden  
     imageInputElement = c[i1];  
     break search;  
    }  
   }  
  }  
 }  
 return imageInputElement;  
}