#left_column{ /* sum margin+border = 156 px*/

			   width:150px;
			   float:left;
			   text-align:left;
			   margin:0px 3px 0px 1px;
			  
			}


			 #right_column{

			   width:624px;
			   float:left;
			  
			}


			#left_main{  

				width:468px;
				float:left;
				
			}

			#right_main{  /*156+border box2px+margin*/

				width:150px;
				float:left;
			    text-align:left;
			    margin:0px 1px 0px 3px;

			}