function NewWindow(mypage,myname,w,h,scroll,pos){
LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;
settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
win=window.open(mypage,myname,settings);
}



function roll_over(img_name, img_src){
 document[img_name].src = img_src;
}


function displayRow(){

if(document.myform.sizetype[0].checked) {
  size_type = 'standard';
}

if(document.myform.sizetype[1].checked) {
  size_type = 'custom';
}


var row_standardsize = document.getElementById("length_standard");
var row_customsize = document.getElementById("length_custom");

var row_standard_outlet_position = document.getElementById("outlet_position_standard");
var row_custom_outlet_position = document.getElementById("outlet_position_custom");

var row_standard_outlet_diameter = document.getElementById("outlet_diameter_standard");
var row_custom_outlet_diameter = document.getElementById("outlet_diameter_custom");

//alert(size_type);

// if (row_standardsize.style.display == '') {

if (size_type == 'custom') {
  row_standardsize.style.display = 'none';
  row_customsize.style.display = '';

  row_standard_outlet_position.style.display = 'none';
  row_custom_outlet_position.style.display = '';

  row_standard_outlet_diameter.style.display = 'none';
  row_custom_outlet_diameter.style.display = '';

} else {

  row_standardsize.style.display = '';
  row_customsize.style.display = 'none';

  row_custom_outlet_position.style.display = 'none'; 
  row_standard_outlet_position.style.display = ''; 

  row_custom_outlet_diameter.style.display = 'none'; 
  row_standard_outlet_diameter.style.display = ''; 

}
}


function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}