function Big1Window()

{

  big1_window = 

    window.open("popup_rm1.html","plain","scroolbars=no, menubar=no, toolbar=no, width=540, height=645");

}
function Big2Window()

{

  big2_window = 

    window.open("popup_rm2.html","plain","scroolbars=no, menubar=no, toolbar=no, width=540, height=645");

}
function Big3Window()

{

  big3_window = 

    window.open("popup_rm3.html","plain","scroolbars=no, menubar=no, toolbar=no, width=540, height=645");

}
function Big4Window()

{

  big4_window = 

    window.open("popup_rm4.html","plain","scroolbars=no, menubar=no, toolbar=no, width=540, height=645");

}