function onlyThreeLang() {
	COUNT=0;
	for(i=1;;i++){
		if(!document.getElementById("spoken_lang_" + i)) break;	
		if(document.getElementById("spoken_lang_" + i).checked==true) COUNT++;
	}
	if(COUNT==0){alert("Please select your spoken languages");return false;}
	if(COUNT > 3){alert("Select only three!");return false;}
	return true;
}

function selectOnlyNum(vv, num) {
    var result = 0
    for (var i = 0; i < vv.options.length; i++) {
        if (vv.options[i].selected){ result ++; }
    }
    if (result > num){
    	for(var i = 0; i < vv.options.length; i++){vv.options[i].selected = false;}
    	alert("Select only " + num);
    }
}

function isValidEmail(strEmail){
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
    if (strEmail.search(validRegExp) == -1) {return false;}
    return true; 
}