function jscss(a,o,c1,c2) /* Set arbitrary class via script */
{
	if (document.getElementById) {
	var n = document.getElementById(o);
	n.className = c1;
	}
}

/*  
a    defines the action you want the function to perform.
o    the object in question.
c1    the name of the first class
c2    the name of the second class
Possible actions are:
swap    replaces class c1 with class c2 in object o.
add    adds class c1 to the object o.
remove    removes class c1 from the object o.
check    test if class c1 is already applied to object o and returns true or false. 
*/


function pop_window(theURL)
 {
 win_left = ((screen.width - 680)/2); win_top = ((screen.height - 440)/2)-30;
 my_window=window.open(theURL,'messagewindow','width=680,height=440,top='+win_top+',left='+win_left);
 my_window.focus();
 return false;
 
 }