googel link

<a id="try_link" href="" target="_balnk">Try this link</a>

	<script type="text/javascript">
		var yourSite = 'test'; 
		function getUrlVars()
		{
		    var vars = [], hash;
		    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
		    for(var i = 0; i < hashes.length; i++)
		    {
		        hash = hashes[i].split('=');
		        vars.push(hash[0]);
		        vars[hash[0]] = hash[1];
		    }
		    return vars;
		}
		document.getElementById('try_link').href='https://www.google.com.au/search?q='+ getUrlVars()["q"] +'+site:' + yourSite; 

	</script>