#main { width:960px;}

#header {height:100px;}
#header .column_left  {width:400px; float:left}
#header .column_right {width:560px; float:left}

#footer {height:60px}

.column_left  {width:220px; float:left}
.column_right {width:740px; float:left}
.col2 {width:364px; float:left}
.col3 {width:240px; float:left}