function checkempty_fields(fid){if(document.getElementById(fid).value==""){return false;}else return true;}
function chec_email(fid){var str=document.getElementById(fid).value;var at="@"
var dot="."
var lat=str.indexOf(at)
var lstr=str.length
var ldot=str.indexOf(dot)
if(str.indexOf(at)==-1||str.indexOf(at)==0||str.indexOf(at)==lstr||str.indexOf(at,(lat+1))!=-1||str.indexOf(" ")!=-1){document.getElementById('err_'+fid).style.display='';document.getElementById('err_'+fid).innerHTML=stof_email_error1;document.getElementById(fid+'_div').style.background='url('+localhostPath+'/site/images/bg-input2-err2.gif)';return false}else{document.getElementById('err_'+fid).style.display='none';document.getElementById('err_'+fid).innerHTML="";document.getElementById(fid+'_div').style.background='url('+localhostPath+'/site/images/bg-input2.gif)';}
if(str.indexOf(dot)==-1||str.indexOf(dot)==0||str.indexOf(dot)==lstr||str.substring(lat-1,lat)==dot||str.substring(lat+1,lat+2)==dot||str.indexOf(dot,(lat+2))==-1){document.getElementById('err_'+fid).style.display='';document.getElementById('err_'+fid).innerHTML=stof_email_error1;document.getElementById(fid+'_div').style.background='url('+localhostPath+'/site/images/bg-input2-err2.gif)';return false}else{document.getElementById('err_'+fid).style.display='none';document.getElementById('err_'+fid).innerHTML="";document.getElementById(fid+'_div').style.background='url('+localhostPath+'/site/images/bg-input2.gif)';}
if(lstr<5){document.getElementById('err_'+fid).style.display='';document.getElementById('err_'+fid).innerHTML=stof_email_error1;document.getElementById(fid+'_div').style.background='url('+localhostPath+'/site/images/bg-input2-err2.gif)';return false;}else{document.getElementById('err_'+fid).style.display='none';document.getElementById('err_'+fid).innerHTML="";document.getElementById(fid+'_div').style.background='url('+localhostPath+'/site/images/bg-input2.gif)';}
return true;}
function send2friend(){f=document.frm_send2friend;var ok=true;if(!checkempty_fields('emailoffriend'))ok=false;if(!checkempty_fields('youremail'))ok=false;if(!chec_email('youremail'))ok=false;if(!chec_email('emailoffriend'))ok=false;if(!ok)return false;else{f.submit();}}
function send2friend_ane(k){
        f=document.getElementById('frm_send2friend'+k);
        var ok=true;
        if(!checkempty_fields('emailoffriend'+k))ok=false;
        if(!checkempty_fields('youremail'+k))ok=false;
        if(!chec_email('youremail'+k))ok=false;
        if(!chec_email('emailoffriend'+k))ok=false;
        if(!ok)return false;
        else{
            f.submit();
        }
    }

function send2friend_offers(k){
        f=document.getElementById('frm_send2friend'+k);
        var ok=true;
        if(!checkempty_fields('emailoffriend'+k))ok=false;
        if(!checkempty_fields('youremail'+k))ok=false;
        if(!chec_email('youremail'+k))ok=false;
        if(!chec_email('emailoffriend'+k))ok=false;
        if(!ok)return false;
        else{
            f.submit();
        }
    }