function login(myform) {
	var form_items = $(myform).getElementsByTagName('input')
	var result = '';
	if (!emailcheck($('email').value)) result = 'email_valid';
	for (var i = 0; i < form_items.length; i++) {
		if (!$(form_items[i].id).value)
			result = 'fillout';
	}
	if (result) {
		alert(signuperror[result]);
		$('email').focus();
		return false;
	} else return true;
}

function signup(request) {
	var error = request.getResponseHeader("Error");
	var result = '';
	if (error=='1') result = 'email_exists';
	if (error=='2') result = 'error';
	if (result) {
		alert(signuperror[result]);
		Element.hide('progress');
		$('submit').disabled='';
	} else {
		$('signup_steps').innerHTML = request.responseText;
		new Effect.Highlight('signup_steps', { delay: 0.2 });
	}
}

function formconfirm(myform,passvar) {
	if (!passvar) passvar='';
	var result = '';
	var noalpha = /^[a-zA-Z0-9]*$/;
	if ($(passvar+'password').value!='') {
		if (!noalpha.test($(passvar+'password').value)) {
			result = 'pass1';
		}
		if ($(passvar+'password').value.length<4) {
			result = 'pass1';
		}
		if (!result) {
			if ($(passvar+'password').value!=$('2password').value) {
				result = 'pass2';
			}
		}
	} else {
		if (passvar) {
			result = 'pass1';
		}
	}
	if (result) {
		alert(signuperror[result]);
		$(passvar+'password').focus();
		return false;
	} else {
		return true;
	}
}

function formcheck(myform) {
	var form_items = $(myform).getElementsByTagName('input')
	var result = '';
	if (myform=='signup') {
		if (!$('terms').checked) result = 'terms';
		if (!emailcheck($('email').value)) result = 'email';
	}
	for (var i = 0; i < form_items.length; i++) {
		if (!$(form_items[i].id).value)
			result = 'fillout';
	}
	if (result) {
		alert(signuperror[result]);
		if (myform!='data') $('name').focus();
		return false;
	} else return true;
}

function timezone() {
	var curDateTime = new Date();
	$('time_zone').value = (-(curDateTime.getTimezoneOffset()/60));
//	alert (-(curDateTime.getTimezoneOffset()/60));
}

function emailcheck (emailStr) {
	// V1.1.3: Sandeep V. Tamhankar (stamhankar@hotmail.com)
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			return false;
		}
	}
	if (user.match(userPat)==null) {
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				return false;
			}
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			return false;
		}
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && 
	domArr[domArr.length-1].search(knownDomsPat)==-1) {
		return false;
	}
	if (len<2) {
		return false;
	}
	return true;
}