div.adspacefltlft
{
float:left;
}

div.adspacefltrght
{
float:right;
}

div.adspace300x250
{
display:block;
clear:both;
width:300px;
height:250px;
overflow:hidden;
padding-bottom:15px;
}

div.adspace180x150
{
display:block;
clear:both;
width:180px;
height:150px;
overflow:hidden;
padding-bottom:15px;
}

div.adspace180x150 img
{
width:180px;
height:150px;
}

div.adspace300x100
{
display:block;
clear:both;
width:300px;
height:100px;
overflow:hidden;
padding-bottom:15px;
}

div.adspace300x100 img
{
width:300px;
height:100px;
}

div.adspace720x90
{
display:block;
clear:both;
width:728px;
height:90px;
overflow:hidden;
margin-bottom:15px;
}

div.adspace720x90 img
{
width:720px;
height:90px;
}