function getElement(id){

    if(document.getElementById){    

        return document.getElementById(id);

    } else if(document.all){        

        return document.all[id];

    } else if(document.layers){     

        return document.layers[id];

    } else{                         

        return null;

    }

}



function validateForm(){

	var error = 0;



	if(getElement("txt_email").value == ""){

		alert("Please enter your email");

		error = 1;

	} else if(getElement("txt_pass").value == ""){

		alert("Please enter your password");

		error = 1;

	}	

	

	if(!error){

		getElement('acct_login').submit();

	}

}



function validateEmail(val){

	

	var valid_exts = Array('.com', '.net', '.mil', '.org', '.us', '.ws', '.tv', '.biz', '.info', '.name', 

												 '.cc', '.de', '.jp', '.be', '.at', '.nz', '.cn', '.tw', '.co.uk', '.jobs', '.eu');

	var domain_found = false;

	

	//@ ?

	if(val.indexOf('@') == -1){

		return false;

	}

	//dot?

	if(val.indexOf('.') == -1){

		return false;

	}

	//where is the dot

	if( (val.lastIndexOf('.') != (val.length-3) ) && (val.lastIndexOf('.') != (val.length-4) ) ){

		return false;

	}

	//valid domain extension?

	for(var i=0;i<valid_exts.length;i++){

		if( (val.indexOf(valid_exts[i]) != -1) ){

			domain_found = true;

		}

	}

	if(!domain_found){

		return false;

	}

	return true;

}