This Javascript function will filter a table according to a RegEx match with an input string. It does this by looping through each row of the table and hiding it if nothing matches. This is a pretty useful bit of code when you are presented report outputs as html tables, your user likes to chop and change conditions, and the query itself is a little slow.

//takes the tableid, and the filterstring and loops through the table
//doing a regex match using the filterString. if line matches, the <tr> is shown
// but if no match anywhere on the line, it is hidden.  
// Andrew Cave 04/02/2013
// andrew.cave.blogging@gmail.com
function filterTable(tableID,filterString){
t = document.getElementById(tableID);
if(typeof t=='undefined'){return;}//exit if the table hasn't been created yet
tbod = t.tBodies[0];
rows = tbod.rows;
rowct = rows.length;
filterString = trim(filterString);
filterString=(filterString.length==0)?'.*':filterString; //empty strings return all records
re = new RegExp(trim(filterString),"i");

for(i=0;i < rowct;i++){
cells=rows[i].cells;
cellct=cells.length;
hideme = 1; //start with hideme being true
for(j=0;j < cellct;j++){
	var td = cells[j].innerHTML;
	if(td.match(re)){ //checking for a match
		hideme=0;
		break;
	}
}
if(hideme){
	$(rows[i]).hide();
} else {
	$(rows[i]).show();
}
}
}