I am also on dom ready binding hyperlink click event with popup window without querystring as follows 

2. $(".cmpID").unbind("click").bind("click", function () {
3.              window.showModalDialog("company.aspx?m=E&id=" + ui.item.id, "Company", "dialogWidth:525px;location:no;status:no;dialogHeight:380px;resizable:no;scroll:no;modal=yes"); return false;
4.             });

and on select event of autocomplete I am unbind that hyperlink and again bind that hyperlink with selected value of autocomplete on click with popup with querystring as follows

2. $(".cmpID").unbind("click").bind("click", function () {
3.               window.showModalDialog("company.aspx?m=I" + ui.item.id, "Company", "dialogWidth:525px;location:no;status:no;dialogHeight:380px;resizable:no;scroll:no;modal=yes"); return false;
4.             });

Now some kind of need arise like when there is no data in the autocomplete user will open popup window and add data into the database.