/* TELLAFRIEND.JS */
function tellafriend(){
	var sendPage=document.location;
	var formPage=strukt_tafpage;
	tellafriendwin=window.open(formPage+'?p='+sendPage,'tellafriendwin','width=250,height=330,scrollbars=false,statusbar=true,resizeable=false');
	tellafriendwin.focus();
}
function tellafriendpl(permlink){
	var sendPage=permlink;
	var formPage=strukt_tafpage;
	tellafriendwin=window.open(formPage+'?p='+sendPage,'tellafriendwin','width=250,height=330,scrollbars=false,statusbar=true,resizeable=false');
	tellafriendwin.focus();
}

function echeck(str) {
	/* open source code from smartwebby.com */
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(at)==-1){
	   alert("Invalid E-mail Address");
	   return false;
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert("Invalid E-mail Address");
	   return false;
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    alert("Invalid E-mail Address");
	    return false;
	}
	 if (str.indexOf(at,(lat+1))!=-1){
	    alert("Invalid E-mail Address");
	    return false;
	 }
	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    alert("Invalid E-mail Address");
	    return false;
	 }
	 if (str.indexOf(dot,(lat+2))==-1){
	    alert("Invalid E-mail Address");
	    return false;
	 }
	 if (str.indexOf(" ")!=-1){
	    alert("Invalid E-mail Address");
	    return false;
	 }
	 return true;					
}

function checkform(){
	if(document.sendpage.to.value=="user@domain.com"){
		alert("Please enter a valid email address to send mail to.");
		return false;
	}
	if(document.sendpage.name.value=="Your Name"){
		alert("Please enter your name.");
		return false;
	}
	if(document.sendpage.fr.value=="you@domain.com"){
		alert("Please enter your email address.");
		return false;
	}
	if(!echeck(document.sendpage.to.value)){
		alert("Please enter a valid email address to send mail to.");
		return false;
	}
	if(!echeck(document.sendpage.fr.value)){
		alert("Please enter your valid email address.");
		return false;
	}
	document.sendpage.submit();
}