var opened=false;
var remote;
function callpopup(type1, w, h) {                     
	var n="Setup";              // add Name to opener window
	//var w=450;                // width of window to be opened
	//var h=300;			    // Height of window to be opened        
	var x=300;                  // X-position of window to be opened    
	var y=200;                  // Y-position of window to be opened    

	args="width="+w+",height="+h+",resizable=no,left="+x+",top="+y+",status=0,scrollbars=yes";
	if(opened == false){
		remote = open(type1,n,args);
	}
	else if(opened == true){
		if(remote.closed == false)
			remote.close(); 
		remote = open(type1,n,args);
	}
	opened = true; 
}