// JavaScript Document

function openSimpleWindowAt(aPage, anX, aY, aW, aH)
		{
		  presWind=window.open("","presWind","scrollbars=yes,resizable=yes,toolbars=0,status=0,width="+aW+",height="+aH+",dependant=1");
		  presWind.location=aPage;
		  presWind.moveTo(anX, aY);
		}

function isAt(c){
   return ( ((c == "@"))  )
}
 
function checkForm(){
 var bool = true;
 var bool2 = true;
 req = document.newsletter;
    if(req.realname.value == ""){
       alert("You must enter a name");
       bool = false;
       req.realname.focus();
    }

    else if(req.email.value == ""){
       alert("You must enter your email address");
       bool = false;
       req.email.focus();
    }
	else if(req.email.value != ""){
		bool2 = false;
		c = req.email.value;
	    for(i=0; i< c.length; i++){
			d = c.charAt(i);
       		if(isAt(d)){
				bool2 = true;
       		}

    	}
		if(bool2 == false){
			alert("All email addresses must be valid");
			bool = false;
		}
	}
 return bool;

}

function base64_decode (data) {
    // Decodes string using MIME base64 algorithm  
    // 
    // version: 1004.2314
    // discuss at: http://phpjs.org/functions/base64_decode    // +   original by: Tyler Akins (http://rumkin.com)
    // +   improved by: Thunder.m
    // +      input by: Aman Gupta
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Onno Marsman    // +   bugfixed by: Pellentesque Malesuada
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // -    depends on: utf8_decode    // *     example 1: base64_decode('S2V2aW4gdmFuIFpvbm5ldmVsZA==');
    // *     returns 1: 'Kevin van Zonneveld'
    // mozilla has this native
    // - but breaks in 2.0.0.12!
    //if (typeof this.window['btoa'] == 'function') {    //    return btoa(data);
    //}
 
    var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
    var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, dec = "", tmp_arr = []; 
    if (!data) {
        return data;
    }
     data += '';
 
    do {  // unpack four hexets into three octets using index points in b64
        h1 = b64.indexOf(data.charAt(i++));
        h2 = b64.indexOf(data.charAt(i++));        h3 = b64.indexOf(data.charAt(i++));
        h4 = b64.indexOf(data.charAt(i++));
 
        bits = h1<<18 | h2<<12 | h3<<6 | h4;
         o1 = bits>>16 & 0xff;
        o2 = bits>>8 & 0xff;
        o3 = bits & 0xff;
 
        if (h3 == 64) {            tmp_arr[ac++] = String.fromCharCode(o1);
        } else if (h4 == 64) {
            tmp_arr[ac++] = String.fromCharCode(o1, o2);
        } else {
            tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);        }
    } while (i < data.length);
 
    dec = tmp_arr.join('');
    dec = utf8_decode(dec); 
    return dec;
}

function utf8_decode ( str_data ) {
    // Converts a UTF-8 encoded string to ISO-8859-1  
    // 
    // version: 1004.2314
    // discuss at: http://phpjs.org/functions/utf8_decode    // +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
    // +      input by: Aman Gupta
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Norman "zEh" Fuchs
    // +   bugfixed by: hitwork    // +   bugfixed by: Onno Marsman
    // +      input by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // *     example 1: utf8_decode('Kevin van Zonneveld');
    // *     returns 1: 'Kevin van Zonneveld'    
    
    var tmp_arr = [], i = 0, ac = 0, c1 = 0, c2 = 0, c3 = 0;
    
    str_data += '';
    
    while ( i < str_data.length ) {        c1 = str_data.charCodeAt(i);
        if (c1 < 128) {
            tmp_arr[ac++] = String.fromCharCode(c1);
            i++;
        } else if ((c1 > 191) && (c1 < 224)) {            c2 = str_data.charCodeAt(i+1);
            tmp_arr[ac++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63));
            i += 2;
        } else {
            c2 = str_data.charCodeAt(i+1);            c3 = str_data.charCodeAt(i+2);
            tmp_arr[ac++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
            i += 3;
        }
    } 
    return tmp_arr.join('');
}

// This function fires when the document has fully loaded
window.onload = function()
{
	// Check to see if there is a contact form on this page.
	var theForm = document.getElementById("frmContact");
	if(theForm)
	{
		// There is a contact form.  Bind the onsubmit event
		 theForm.onsubmit = checkContactForm;
	}
}

function checkContactForm()
{
	var obj = document.getElementById("firstname");
	
	if(obj.value == "")
	{
		alert("Please enter your first name");
		obj.focus();
		return false;
	}
	
	var obj = document.getElementById("email");
	
	if(obj.value == "")
	{
		alert("Please enter your email address");
		obj.focus();
		return false;
	}	
	
	return true;
}