<div id='page'>

asdf

asdf

asdffds

sdfewer

</div>

 

<script>

var search_string=asd;

if(search_string){

 

function x(search_string){var r,i,search_string;

r=page.innerText.createTextRange();

for(i=0;r.findText(search_string);i++){r.execCommand('BackColor','','006600');r.collapse(false)};

}

x(search_string);

}