function display_tr(check)
{if(check.checked){document.getElementById(check.name+'_td').style.display='';}else document.getElementById(check.name+'_td').style.display='none';}
function display_tr_radio(checkName,check)
{for(i=0;i<check.length;i++){if(check[i].checked==true){document.getElementById(checkName.name+'_'+i+'_td').style.display='';}else{document.getElementById(checkName.name+'_'+i+'_td').style.display='none';}}}
function checkedAll(checked,form_name){var el=document.getElementById(form_name);for(var i=0;i<el.elements.length;i++){el.elements[i].checked=checked;}}
function emailCheck(who){var email=/^[A-Za-z0-9][\w-.]*[A-Za-z0-9]*@[A-Za-z0-9]*([\w-.]*[A-Za-z0-9]\.)+([A-Za-z]){2,4}$/i;return(email.test(who));}
function copy_fields(){el_1=document.form1;el_2=document.form2;for(var i=0;i<el_2.elements.length;i++){document.form2.elements[i].value=document.form1.elements[i].value;}}
function makeRequest_get(url,code){var http_request=false;if(window.XMLHttpRequest){http_request=new XMLHttpRequest();if(http_request.overrideMimeType){http_request.overrideMimeType('text/xml');}}else if(window.ActiveXObject){try{http_request=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{http_request=new ActiveXObject("Microsoft.XMLHTTP");}catch(e){}}}
if(!http_request){alert('Giving up :( Cannot create an XMLHTTP instance');return false;}
if(code==1){http_request.onreadystatechange=function(){showContents(http_request);};}
http_request.open('GET',url,true);http_request.setRequestHeader('Content-Type','application/x-www-form-urlencoded');http_request.send(null);}
function showContents(http_request){if(http_request.readyState==4){if(http_request.status==200){str=http_request.responseText;if(str.search(/.*code=ok.*/)==-1){alert('The promo code is not valid');return false}}else{alert('There was a problem with the request.');}}}
function showContents_email(http_request){if(http_request.readyState==4){if(http_request.status==200){str=http_request.responseText;if(str.search(/.*double_email=ok*/)==-1){alert('The email already exists in our database');document.body.innerHTML=http_request.responseText;return false;}else{}}else{alert('There was a problem with the request.');}}}
function makeRequest(url){var http_request=false;if(window.XMLHttpRequest){http_request=new XMLHttpRequest();if(http_request.overrideMimeType){http_request.overrideMimeType('text/xml');}}else if(window.ActiveXObject){try{http_request=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{http_request=new ActiveXObject("Microsoft.XMLHTTP");}catch(e){}}}
if(!http_request){alert('Giving up :( Cannot create an XMLHTTP instance');return false;}
http_request.onreadystatechange=function(){alertContents(http_request);};http_request.open('GET',url,true);http_request.setRequestHeader('Content-Type','application/x-www-form-urlencoded');http_request.send(null);}
function alertContents(http_request){if(http_request.readyState==4){if(http_request.status==200){document.body.innerHTML=http_request.responseText;}else{alert('There was a problem with the request.');}}}
var cookieEnabled=(navigator.cookieEnabled)?true:false
if(!cookieEnabled)alert('You must have cookies enabled');var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",decode:function(input){var output="";var chr1,chr2,chr3;var enc1,enc2,enc3,enc4;var i=0;input=input.replace(/[^A-Za-z0-9\+\/\=]/g,"");while(i<input.length){enc1=this._keyStr.indexOf(input.charAt(i++));enc2=this._keyStr.indexOf(input.charAt(i++));enc3=this._keyStr.indexOf(input.charAt(i++));enc4=this._keyStr.indexOf(input.charAt(i++));chr1=(enc1<<2)|(enc2>>4);chr2=((enc2&15)<<4)|(enc3>>2);chr3=((enc3&3)<<6)|enc4;output=output+String.fromCharCode(chr1);if(enc3!=64){output=output+String.fromCharCode(chr2);}
if(enc4!=64){output=output+String.fromCharCode(chr3);}}
output=Base64._utf8_decode(output);return output;},_utf8_encode:function(string){string=string.replace(/\r\n/g,"\n");var utftext="";for(var n=0;n<string.length;n++){var c=string.charCodeAt(n);if(c<128){utftext+=String.fromCharCode(c);}
else if((c>127)&&(c<2048)){utftext+=String.fromCharCode((c>>6)|192);utftext+=String.fromCharCode((c&63)|128);}
else{utftext+=String.fromCharCode((c>>12)|224);utftext+=String.fromCharCode(((c>>6)&63)|128);utftext+=String.fromCharCode((c&63)|128);}}
return utftext;},_utf8_decode:function(utftext){var string="";var i=0;var c=c1=c2=0;while(i<utftext.length){c=utftext.charCodeAt(i);if(c<128){string+=String.fromCharCode(c);i++;}
else if((c>191)&&(c<224)){c2=utftext.charCodeAt(i+1);string+=String.fromCharCode(((c&31)<<6)|(c2&63));i+=2;}
else{c2=utftext.charCodeAt(i+1);c3=utftext.charCodeAt(i+2);string+=String.fromCharCode(((c&15)<<12)|((c2&63)<<6)|(c3&63));i+=3;}}
return string;}}