var missingFields = 0;

// check a forms validity
function checkForm(doSubmit) {
	if ( !doSubmit && missingFields == 0 ) return;
	var i = 0;
	
    missingFields = 0;
	var requiredFields = document.mailForm.requiredFields.value.split(",");
	var requiredFieldsTypes = document.mailForm.requiredFieldsTypes.value.split(",");
	
	for ( i ; i < requiredFields.length; i++ )
	{
        var field = document.getElementById( requiredFields[i] );
        var label = document.getElementById( requiredFields[i] + "Label");
        var field_ok = true;
					
		switch (requiredFieldsTypes[i]) {
        case 'text':
            field_ok = field.value.length > 0;
            break;
        case 'email':
            field_ok = isEmailAddr(field.value);
            break;
		}
        if (field_ok) {
            field.className = "checkfield"
            label.className = "checklabel"
        } else {
            field.className = "checkfield checkerror"
            label.className = "checklabel checkerror"
            missingFields++
        }
	}
	
	if ( missingFields > 0 ) {
		var warningDiv	= document.getElementById("errorMessage");
		warningDiv.innerHTML = document.mailForm.errorMessage.value;
		return false;
	}
	else {
		var warningDiv	= document.getElementById("errorMessage");
		warningDiv.innerHTML = '';
		if ( doSubmit ) {
			return true;
		}
	}
		
}

function isEmailAddr(str) 
{
	return str.match(/^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/);
}

function email(name, domain,tld) {
	//var link = "<a href='mailto:" + name + "@" + domain + "." + tld + "'>" + name + "@" + domain + "." + tld + "</a>";
	var link = "<a href='mailto:" + name + "@" + domain + "." + tld + "'>&gt; E-Mail</a>";
	document.write(link);
}

function clearField(field) {
	if ( field.value == field.defaultValue )
		field.value = "";
}

function MM_CheckFlashVersion(reqVerStr,msg){
  with(navigator){
	var isIE  = (appVersion.indexOf("MSIE") != -1 && userAgent.indexOf("Opera") == -1);
	var isWin = (appVersion.toLowerCase().indexOf("win") != -1);
	if (!isIE || !isWin){  
	  var flashVer = -1;
	  if (plugins && plugins.length > 0){
		var desc = plugins["Shockwave Flash"] ? plugins["Shockwave Flash"].description : "";
		desc = plugins["Shockwave Flash 2.0"] ? plugins["Shockwave Flash 2.0"].description : desc;
		if (desc == "") flashVer = -1;
		else{
		  var descArr = desc.split(" ");
		  var tempArrMajor = descArr[2].split(".");
		  var verMajor = tempArrMajor[0];
		  var tempArrMinor = (descArr[3] != "") ? descArr[3].split("r") : descArr[4].split("r");
		  var verMinor = (tempArrMinor[1] > 0) ? tempArrMinor[1] : 0;
		  flashVer =  parseFloat(verMajor + "." + verMinor);
		}
	  }
	  // WebTV has Flash Player 4 or lower -- too low for video
	  else if (userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 4.0;

	  var verArr = reqVerStr.split(",");
	  var reqVer = parseFloat(verArr[0] + "." + verArr[2]);
  
	  if (flashVer < reqVer){
		if (confirm(msg))
		  window.location = "http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash";
	  }
	}
  } 
}