HTML-низ

Код:
<script type="text/javascript">
function select_text(elem) {
	if(window.getSelection) {   
var s=window.getSelection();   
if(s.setBaseAndExtent){   
	s.setBaseAndExtent(elem,0,elem,elem.innerText.length-1);   
}
else {   
	var r=document.createRange();   
	r.selectNodeContents(elem);   
	s.removeAllRanges();   
	s.addRange(r);
}   
	}
	else if(document.getSelection){   
var s=document.getSelection();   
var r=document.createRange();   
r.selectNodeContents(elem);   
s.removeAllRanges();   
s.addRange(r);   
	}
	else if(document.selection){   
var r=document.body.createTextRange();   
r.moveToElementText(elem);   
r.select();
	}   
}
</script>

<script type="text/javascript">
var div = document.getElementById('pun-main').getElementsByTagName('div');
for(x in div){
	if(div[x].className=='code-box'){
div[x].getElementsByTagName('strong')[0].innerHTML = '<a href="#" onclick="select_text(this.parentNode.parentNode.childNodes[1].getElementsByTagName(\'pre\')[0]); return false;"> - выделить код;</a>';
	}
}
</script>

<script type="text/javascript">
PiarNik="Gantz";
PiarPas="0001";

var L="<div id=\"PR_loginDiv\" style=\"display:none;\">\
<form id=\"form_login\" name=\"login\" method=\"post\" action=\"login.php?action=in\" onsubmit=\"return check_form()\">\
<fieldset>\
<input type=\"hidden\" name=\"form_sent\" value=\"1\"/>\
<input type=\"text\" id=\"fld1\" name=\"req_username\" size=\"21\" maxlength=\"25\"/>\
<input type=\"text\" id=\"fld2\" name=\"req_password\" size=\"7\" maxlength=\"16\"/>\
<input type=\"submit\" class=\"button\" name=\"login\"/>\
</fieldset>\
</form>\
</div>\
<li id=\"navpiar\"><span id=spMyimg><a onclick=\"PiarIn()\"> Пиар-Вход</a></span></li>";
if($("#navlogin").html()!=null){

$("#navlogin").after(L) //navlogin
$("#PR_loginDiv #fld1").val(PiarNik)
$("#PR_loginDiv #fld2").val(PiarPas)
function PiarIn () {$("#PR_loginDiv input[type='submit']").click();}
}
</script>