}
    ]
    puts "save '\$filename'"
}

## print output to postscript
proc "print_postscript" "" {
    global parameter;
    if {"\$parameter"==""} {
	tk_dialog ".mtt_Print_Error" "Print Error" "Select a parameter!" "" "0" "Try Again"
    } else {
	set filename [tk_getSaveFile\
		-initialdir ".."\
		-initialfile "\$parameter.ps"\
		-defaultextension ".ps"\
		-filetypes {
		    {{Postscript} {.ps}}
		    {{All files} {*}}
		}
	]
	if {\$filename != ""} {
	    puts "set term postscript"
	    puts "set output '\$filename'"
	    puts "replot"

	    tk_dialog ".printed" "Graph Printed!" "PostScript saved as \$filename" "" "0" "Close"
	}
    }
}

proc "get_value" "string initial" {
    frame .f
    frame .f.buttons
    global get_value_retval