#col_left {
	position:relative;
	float:left;
	width:150px;
	height:300px;
	margin:2px 5px 2px 5px;
}
#col_right {
	position:relative;
	float:right;
	width:150px;
	height:300px;
	margin:2px 5px 2px 5px;
}
#col_centre {
	position:relative;
	float:left;
}
#ctr_block {
	position:relative;
	float:left;
}
#r_g_block {
	position:relative;
	width:200px;
	height:200px;
	float:left;
	background-image: url(images/x-r-g-grad.gif);
	background-repeat: repeat;
}
#b_y_block {
	position:relative;
	width:200px;
	height:200px;
	float:left;
	background-image: url(images/x-b-y-grad.gif);
	background-repeat: repeat;
}
#text_over {
	position:absolute;
	width:390px;
	height:190px;
	left:165px;
	top:130px;
	z-index:10;
	color: #009900;
	font-weight: bold;
	padding:5px 2px 0px 2px;
	overflow:auto;
}
/* content definition to override global */
#content {
	position:relative;
	width:780px;
	margin:0px auto 0px auto;
}