function clearStates(prefix)
{
    var stateValue = "";

    var elm = document.getElementById(prefix+"_state_select");
    if (elm) 
    {
        stateValue = elm.value;

        var i, iMax;
        iMax = elm.options.length;
        for (i=(iMax-1); i >= 0; i--)
        {
            elm.remove(i);
            elm.options[i] = null;
        }
    }

    return stateValue;
}

function populateStates(country,prefix,restoreValue)
{
    var stateValue = clearStates(prefix);

    var elm = document.getElementById(prefix+"_state_select");

	if(!CountriesStates[country.value]) {
        if (elm) 
        {
			elm.options[0] = new Option("Select one...", 0);
        }

		initStates();
		return;
	}

    if (elm) 
    {
        var assignedStates = new Array();
        var i = 0;
        if (CountriesStates[country.value] && CountriesStates[country.value].length > 0)
        {
            elm.options[i++] = new Option("Select one...", 0);
			assignedStates.push(0);
        }

        elm.options[i++] = new Option("Other", -1);
		assignedStates.push(-1);

        if (CountriesStates[country.value] && CountriesStates[country.value].length > 0)
        {
            var j;
            for(j=0; j<CountriesStates[country.value].length; j++)
            {
                elm.options[i++] = new Option(CountriesStates[country.value][j]["state"], CountriesStates[country.value][j]["state_code"]);
				assignedStates.push(CountriesStates[country.value][j]["state_code"]);
            }
        }

        if (restoreValue)
        {
        	var correctState = false;
        	var correctStateSelectOne = false;
            for(i=0; i<assignedStates.length; i++)
            {
            	if (assignedStates[i] == 0)
            	{
            		correctStateSelectOne = true;
            	}
            	if (assignedStates[i] == stateValue)
            	{
            		correctState = true;
            		break;
            	}
            }
            if (!correctState)
            {
            	if (stateValue > 0)
            	{
            		if (correctStateSelectOne)
            		{
            			stateValue = 0;
            		}
            		else
            		{
            			stateValue = -1;
            		}
            	}
        		else
        		{
        			stateValue = -1;
        		}
            }

        	i = 0;	
            while(elm.value != stateValue)
            {
            	i ++;
                elm.value = stateValue;     // for Opera compatibility
                if (i>1000) {
                	break;
                }
            }
        }
    }

	initStates();
}

function changeState(state, prefix)
{
	obj = document.getElementById(prefix+'_custom_state_body');
	if (obj && state) {
		obj.style.display = (state.value == -1) ? "" : "none";
	}
}