Try this, the JavaScript was binded to a click but just play around with it.
FunctionnameXwill be a function you made that you call.
C# code on page load:
if( Request.QueryString[ "Action" ].Equals( "onload" ) )
FunctionnameX( Request.QueryString[ "lblname" ].Trim()
The JavaScript:
var VARlblNAME = $("#lblName").text;
window.location.href = '../foldername/pagename.aspx?Action=onload&lblname=' + VARlblNAME;
Let me know if you got it working.