var isInternetExplorer = (navigator.appName.indexOf("Microsoft") != -1);

/*
future references:
var keycode = isInternetExplorer ? event.keyCode : event.which;
*/

function countSpaces(obj){
	var iLength = obj.value.length;
	var strSpaces = obj.value.match(new RegExp("( )", "g"));
	var countSpaces = strSpaces ? strSpaces.length : 0;
	return countSpaces;
}

function countLineBreaks(obj){
	var iLength = obj.value.length;
	var strLineBreaks = obj.value.match(new RegExp("(\\n)", "g"));
	var countLineBreaks = strLineBreaks ? strLineBreaks.length : 0;
	return countLineBreaks;
}

function textCounter(field, counter_field, maxlimit) {
	var lineBreaks = countLineBreaks(field);
	var adjust = isInternetExplorer ? 1 : 0;
	if (field.value.length - lineBreaks * adjust > maxlimit){
		field.value = field.value.substring(0, maxlimit + lineBreaks * adjust);
		field.focus();
	} else {
		counter_field.value = maxlimit - field.value.length + lineBreaks * adjust;
	}
}

function backToSection(backToURL, forceBackToURL){
	if(forceBackToURL == null) forceBackToURL = false;
	if(history.length > 1 && !forceBackToURL) history.back(); else window.location.href = backToURL;
}

function hideStatus(){
	window.defaultStatus='';
	window.status='';
	return true;
}

function searchReset() {
	tot = document.search_form.elements.length;
	for(i=0;i<tot;i++) {
		if (document.search_form.elements[i].type == 'text') {
			document.search_form.elements[i].value = "";
		} else if (document.search_form.elements[i].type == 'checkbox' || document.search_form.elements[i].type == 'radio') {
			document.search_form.elements[i].checked = false;
		} else if (document.search_form.elements[i].type == 'select-one') {
			document.search_form.elements[i].selectedIndex = 0;
		}
	}
	if ((document.search_form.country_id) || (document.search_form.state_id) || (document.search_form.region_id) || (document.search_form.city_id) || (document.search_form.area_id)) {
		searchLocationReset();
	}
}

function easyFriendlyUrl(name2friendlyurl, target, validchars, separator) {
	var str = "";
	var i;
	var exp_reg = new RegExp("[" + validchars + separator + "]");
	var exp_reg_space = new RegExp("[ ]");
	name2friendlyurl.toString();
	for (i=0 ; i<name2friendlyurl.length; i++) {
		if (exp_reg.test(name2friendlyurl.charAt(i))) {
			str = str+name2friendlyurl.charAt(i);
		} else {
			if (exp_reg_space.test(name2friendlyurl.charAt(i))) {
				if (str.charAt(str.length-1) != separator) {
					str = str + separator;
				}
			}
		}
	}
	if (str.charAt(str.length-1) == separator) str = str.substr(0, str.length-1);
	document.getElementById(target).value = str.toLowerCase();
}



function searchLocationReset() {
	if (document.search_form.country_id) {
		if (document.search_form.state_id) {
			while (document.search_form.state_id.options.length>1) {
				deleteIndex=document.search_form.state_id.options.length-1;
				document.search_form.state_id.options[deleteIndex]=null;
			}
		}
		if (document.search_form.region_id) {
			while (document.search_form.region_id.options.length>1) {
				deleteIndex=document.search_form.region_id.options.length-1;
				document.search_form.region_id.options[deleteIndex]=null;
			}
		}
		if (document.search_form.city_id) {
			while (document.search_form.city_id.options.length>1) {
				deleteIndex=document.search_form.city_id.options.length-1;
				document.search_form.city_id.options[deleteIndex]=null;
			}
		}
		if (document.search_form.area_id) {
			while (document.search_form.area_id.options.length>1) {
				deleteIndex=document.search_form.area_id.options.length-1;
				document.search_form.area_id.options[deleteIndex]=null;
			}
		}
	} else if (document.search_form.state_id) {
		if (document.search_form.region_id) {
			while (document.search_form.region_id.options.length>1) {
				deleteIndex=document.search_form.region_id.options.length-1;
				document.search_form.region_id.options[deleteIndex]=null;
			}
		}
		if (document.search_form.city_id) {
			while (document.search_form.city_id.options.length>1) {
				deleteIndex=document.search_form.city_id.options.length-1;
				document.search_form.city_id.options[deleteIndex]=null;
			}
		}
		if (document.search_form.area_id) {
			while (document.search_form.area_id.options.length>1) {
				deleteIndex=document.search_form.area_id.options.length-1;
				document.search_form.area_id.options[deleteIndex]=null;
			}
		}
	} else if (document.search_form.region_id) {
		if (document.search_form.city_id) {
			while (document.search_form.city_id.options.length>1) {
				deleteIndex=document.search_form.city_id.options.length-1;
				document.search_form.city_id.options[deleteIndex]=null;
			}
		}
		if (document.search_form.area_id) {
			while (document.search_form.area_id.options.length>1) {
				deleteIndex=document.search_form.area_id.options.length-1;
				document.search_form.area_id.options[deleteIndex]=null;
			}
		}
	} else if (document.search_form.city_id) {
		if (document.search_form.area_id) {
			while (document.search_form.area_id.options.length>1) {
				deleteIndex=document.search_form.area_id.options.length-1;
				document.search_form.area_id.options[deleteIndex]=null;
			}
		}
	}
}

function $(id) {
	return document.getElementById(id);
}

function setCookie(cookie_name, cookie_value, expire_in_days) {
    var cookie_expire = "";
    if (expire_in_days != null) {
        var expire = new Date();
        expire.setTime(expire.getTime() + 1000*60*60*24*parseInt(expire_in_days));
        cookie_expire = "; expires=" + expire.toGMTString();
   }

   document.cookie = escape(cookie_name) + "=" + escape(cookie_value) + cookie_expire;
}

function getCookie(cookie_name) {
  if (!document.cookie.match(eval("/" + escape(cookie_name) + "=/"))) {
     return false;
  }

  return unescape(document.cookie.replace(eval("/^.*?" + escape(cookie_name) + "=([^\\s;]*).*$/"), "$1"));
}


function showResultsLayer(enable){
    if (enable) {
        document.getElementById("middleContentTransparency").className = "middleContentTransparency";
    }else{
        document.getElementById("middleContentTransparency").className = "middleContentTransparencyHidden";
    }
}

function sleep(milliseconds) {
  var start = new Date().getTime();
  for (var i = 0; i < 1e7; i++) {
    if ((new Date().getTime() - start) > milliseconds){
      break;
    }
  }
}