function check_mail(mail){

    var reEmail = new RegExp('^[a-z0-9\._-]+@[a-z0-9][a-z0-9_-]*(\.[a-z0-9_-]+)*'+
                             '\.([a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|'+
                             'int|mil|museum|name|net|org|pro|travel|box)$', 'i')
    
    var result=reEmail.test(mail) ? true : false;          
    
    if(result){
        return true;
    }
    else{
        alert("Wrong email address. Reenter please!");
        		this.email.focus();
        
        return false;
    }
}
        
/*
function check_mail(mail){
	aft_dog = nxt_dog = dom = AtSignValid = DotValid = 0;
	for (i = 0;  i < mail.length;  i++){
		if (mail.charAt(i) == "@")
			AtSignValid ++;
		else if (mail.charAt(i) == ".")
		{
			DotValid ++;
			dom = 0;
		}
		else if (AtSignValid == 0)
			aft_dog ++;
		else if ((AtSignValid == 1) && (DotValid == 0))
			nxt_dog ++;
		else if ((DotValid > 0) && (AtSignValid == 1))
			dom ++;
	}
	if((AtSignValid == 1) && (DotValid > 0) && (aft_dog > 0) && (nxt_dog > 0) && (dom>1) && (dom<5))
	{
		return true;
	}
	else
	{
		q = alert("Wrong email address. Reenter please!");
		this.email.focus();
		return false;
	}
}
*/
function open_win(url,width,height)
{
	new_win = window.open(url, 'new_win', 'height=400,width=520,toolbar=no,scrollbars=no,directories=no,status=no,menubar=no,resizable=no');
	new_win.moveTo(100,100);
	new_win.focus();
}