// JavaScript Document

function isSelected(f){	
		
	var name = document.getElementById('name').value;
	var email = document.getElementById('email').value;
	var cell = document.getElementById('cell').value;	
	var type = document.getElementById('type').value;
	var date = document.getElementById('date').value;
	var venue = document.getElementById('venue').value;
	var comment = document.getElementById('comment').value;
	//alert(enquiry);
	var flag = 1;
	//if(name!="" && contact_number!="" && email_address!="" && enquiry!=""){		
	//}
	
	if(name==""){
		alert('Enter Name');
		flag = 0;
		
	}
	else if(cell==""){
		alert('Enter Cellephone');
		flag = 0;
		
	}
	else if(type==""){
		alert('Enter Event Type');
		flag = 0;
		return false;
	}
	else if(date==""){
		alert('Enter Event Date');
		flag = 0;
		return false;
	}
	else if(venue==""){
		alert('Enter Event Venue');
		flag = 0;
		return false;
	}
	else if(comment==""){
		alert('Enter Comment');
		flag = 0;
		return false;
	}
	
	
	
	else if(email==""){
		alert('Enter E-mail');
		flag = 0;
	}
	
	if( flag==1 ){
		var r = checkValid(document.getElementById('email'));
		if(r==false)
			alert('Please enter valid email address');
		return r;
	}
		
	
	else{
		//alert("nothing selected!");
		return false;
	}
	
	
	
}


//email validation 
//email validation 

function checkValidation(formInput) {

    if (typeof(formInput) != "object") {
        alert("Validation not supported on this browser.");
        return(false);
    }

    var message;

    if (stringEmpty(formInput.value)) {
        message = "Error! There is no input value entered.";
        //alert(message);
    } else if (noAtSign( formInput.value )) {
        message = "Error! The address \"" + formInput.value + "\" does not contain an '@' character.";
        //alert(message);
    } else if (nothingBeforeAt(formInput.value)) {
        message = "Error! The address \"" + formInput.value;
        message += "\" must contain at least one character before the '@' character";
        //alert(message);
    } else if (noLeftBracket(formInput.value)) {
        message = "Error! The address \"" + formInput.value;
        message += "\" contains a right square bracket ']',\nbut no corresponding left square bracket '['.";
        //alert(message);
    } else if (noRightBracket(formInput.value)) {
        message = "Error! The address \"" + formInput.value;
        message += "\" contains a left square bracket '[',\nbut no corresponding right square bracket ']'.";
        //alert( message);
    } else if (noValidPeriod(formInput.value)) {
        message = "Error! The address \"" + formInput.value + "\" must contain a period ('.') character.";
        //alert(message);
    } else if (noValidSuffix(formInput.value)) {
        message = "Error! The address \"" + formInput.value;
        message += "\" must contain a two, three or four character suffix.";
        //alert(message);
    } else {
        message = "Success! The email address \"" + formInput.value + "\" validates OK.";
        //alert(message);
		return true;
    }

    var objType = typeof(formInput.focus);
    if (objType == "object" || objType == "function") {
         formInput.focus();
    }

    return false;
}

function checkValid (formField) {
    if ( checkValidation ( formField ) == true ) {
        //alert ( 'E-Mail Address Validates OK' );
		return true;
    }
	else{
	    return false;
	}
}

function stringEmpty (formField) {
    // CHECK THAT THE STRING IS NOT EMPTY
    if ( formField.length < 1 ) {
        return ( true );
    } else {
        return ( false );
    }
}

function noAtSign (formField) {
    // CHECK THAT THERE IS AN '@' CHARACTER IN THE STRING
    if (formField.indexOf ('@', 0) == -1) {
        return ( true )
    } else {
        return ( false );
    }
}

function nothingBeforeAt (formField) {
    // CHECK THERE IS AT LEAST ONE CHARACTER BEFORE THE '@' CHARACTER
    if ( formField.indexOf ( '@', 0 ) < 1 ) {
        return ( true )
    } else {
        return ( false );
    }
}

function noLeftBracket (formField) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN CHECK FOR LEFT BRACKET
    if ( formField.indexOf ( '[', 0 ) == -1 && formField.charAt (formField.length - 1) == ']') {
        return ( true )
    } else {
        return ( false );
    }
}

function noRightBracket (formField) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN CHECK FOR RIGHT BRACKET
    if (formField.indexOf ( '[', 0 ) > -1 && formField.charAt (formField.length - 1) != ']') {
        return ( true );
    } else {
        return ( false );
    }
}

function noValidPeriod (formField) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN WE ARE NOT INTERESTED
    if (formField.indexOf ( '@', 0 ) > 1 && formField.charAt (formField.length - 1 ) == ']')
        return ( false );

    // CHECK THAT THERE IS AT LEAST ONE PERIOD IN THE STRING
    if (formField.indexOf ( '.', 0 ) == -1)
        return ( true );

    return ( false );
}

function noValidSuffix(formField) {
    // IF EMAIL ADDRESS IN FORM 'user@[255,255,255,0]', THEN WE ARE NOT INTERESTED
    if (formField.indexOf('@', 0) > 1 && formField.charAt(formField.length - 1) == ']') {
        return ( false );
    }

    // CHECK THAT THERE IS A TWO OR THREE CHARACTER SUFFIX AFTER THE LAST PERIOD
    var len = formField.length;
    var pos = formField.lastIndexOf ( '.', len - 1 ) + 1;
    if ( ( len - pos ) < 2 || ( len - pos ) > 4 ) {
        return ( true );
    } else {
        return ( false );
    }
}

function resetall(){
	document.getElementById('name').value="";
	document.getElementById('telephone').value="";
	document.getElementById('cellphone').value="";
	document.getElementById('email').value="";
	document.getElementById('comment').value="";
	
}