function checkstate(formRef){
 if (formRef.elements['days'].value != ''){
  if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'disc') {
   formRef.elements['cost'].value = 25 * formRef.elements['days'].value + ' $';
  }

  if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'dist') {
   formRef.elements['cost'].value = 30 * formRef.elements['days'].value + ' $';
  }

  if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'dipl') {
   formRef.elements['cost'].value = 30 * formRef.elements['days'].value + ' $';
  }
  
  if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'dest') {
   formRef.elements['cost'].value = 40 * formRef.elements['days'].value + ' $';
  }
  
  if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'drm') {
   formRef.elements['cost'].value = 40 * formRef.elements['days'].value + ' $';
  }

  var taxvalue = ((parseFloat(formRef.elements['cost'].value) + parseFloat(formRef.elements['sunshade'].value)) * 6.5)/100;
 formRef.elements['tax'].value = taxvalue.toFixed(2) + ' $';
 var totalvalue = parseFloat(formRef.elements['cost'].value) + parseFloat(formRef.elements['tax'].value) + parseFloat(formRef.elements['sunshade'].value);
 formRef.elements['total'].value = totalvalue.toFixed(2)  + ' $';
 }
}

function updateExtra(formRef) {
	if (formRef.sunshade_checkbox.checked==false) {
	formRef.elements['sunshade'].value = 0 + ' $';
	} else {
	formRef.elements['sunshade'].value = 20 + ' $';
	}
	var taxvalue = ((parseFloat(formRef.elements['cost'].value) + parseFloat(formRef.elements['sunshade'].value)) * 6.5)/100;
	formRef.elements['tax'].value = taxvalue.toFixed(2) + ' $';
	var totalvalue = parseFloat(formRef.elements['cost'].value) + parseFloat(formRef.elements['tax'].value) + parseFloat(formRef.elements['sunshade'].value);
 formRef.elements['total'].value = totalvalue.toFixed(2)  + ' $';	
}

function doWidth(formRef){
 if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'disc') formRef.elements['weight'].value = '220lbs.';
 if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'dist') formRef.elements['weight'].value = '200lbs.';
 if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'dipl') formRef.elements['weight'].value = '320lbs.';
 if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'dest') formRef.elements['weight'].value = '450lbs.';
  if(formRef.elements['scModel'].options[formRef.elements['scModel'].selectedIndex].value == 'drm') formRef.elements['weight'].value = '500lbs.';
}


var win = null;
function NewWindow(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
win = window.open(mypage,myname,settings)
}