.grid-240{
	/*side*/
	width:240px;
}
.grid-360{
	/*middle-right*/
	width:360px;
}

.grid-460{
	/*side*/
	width:460px;
}
.grid-520{
	/*main*/
    width:520px;	
}

.grid-640{
	/*main*/
	width:640px;
}
.grid-340{
	/*side*/
	width:340px;
}