function initRegion() {
    var f = document.getElementById("regionSelect");
    var region = readCookie('GVprov');
    if (! region) {
        createCookie('GVprov',4,30);
        region = 4;
    }
    f.province.value = region;
    var loc = document.getElementById("Region3");
    if (loc) {
	loc.style.display='none';
    }
    loc = document.getElementById("Region4");
    if (loc) {
	loc.style.display='none';
    }
    loc = document.getElementById("Region"+region);
    if (loc) {
	loc.style.display='block';
    }
    if ( region == 3) {
        changecss(".Region4","display","none");
    } else {
        changecss(".Region3","display","none");
    } 
}

function changecss(myclass,element,value) {
        var CSSRules
        if (document.all) {
                CSSRules = 'rules'
        }
        else if (document.getElementById) {
                CSSRules = 'cssRules'
        }
        for (var i = 0; i < document.styleSheets[0][CSSRules].length; i++) {
                if (document.styleSheets[0][CSSRules][i].selectorText == myclass) {
                        document.styleSheets[0][CSSRules][i].style[element] = value;
                } 
        }       
}

function selectRegion() {
    var f = document.getElementById("regionSelect");
    createCookie('GVprov',f.province.value,30);
    window.location.reload()
}


function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}