function Inv_IsNetscape()
{
   if(navigator.appName.toUpperCase() == "NETSCAPE")
     { return 1;}
   else
     {return 0;}
         
}
function Inv_IsIE()
{
 if(navigator.appName.toUpperCase() != "NETSCAPE")
      { return 1;}
    else
     {return 0;}
}

function GetForm(strFormName)
{
    var objform;
    if(Inv_IsIE() == 1 || document.forms.length > 0) {
	  	objform = document.forms[strFormName];
    } else {
		var numlayers = document.layers.length;
		if(numlayers == 0) {
			objform = document.forms[strFormName];
		} else {
			for(var z=0; z<numlayers; z++) {
  				var objlayer = document.layers[z];
  				for(var x=0; x<objlayer.document.forms.length; x++) {
  					if (objlayer.document.forms[x] == objlayer.document.forms[strFormName]) {
		  				objform = objlayer.document.forms[x];
  					}
  				}
			}
  		}
    }
    return objform;
 }