function CheckUSA()
{
  if (document.SearchForm.Ctry.value == "USA" || document.SearchForm.Ctry.value == "CANADA") {   
     identity=document.getElementById('State_Prov');
     identity.style.visibility = 'visible';  
 }
 else { 
     identity=document.getElementById('State_Prov');
     identity.style.visibility = 'hidden'; 
 }
 
}

////////////////// 

function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}


function addOption(selectbox, value, text )
{
	selectbox.options[selectbox.length] = new Option(text,value);
	
/* n/g on Mac Safari:
    var optn = document.createElement("Option");
	optn.text = text;
	optn.value = value;
	
	selectbox.options.add(optn); 
*/
	
/* old way:
myOption = new Option(i, i, true, true);
myList.options[myList.options.length] = myOption;
*/
}