function alternatecolor(id){ 
 if(document.getElementsByTagName){  
   var table = document.getElementById(id);  
   var rows = table.getElementsByTagName("tr");  
   for(i = 0; i < rows.length; i++){           
     if(i % 2 == 0){ 
       rows[i].className = "tablecolor1";
     }else{ 
       rows[i].className = "tablecolor2";
     }      
   }
 }
}
function colortable () {
	alternatecolor("alter_rows01");	
	alternatecolor("alter_rows02"); 
	alternatecolor("alter_rows03");
	alternatecolor("alter_rows04");
	alternatecolor("alter_rows05");
	alternatecolor("alter_rows06");
	alternatecolor("alter_rows07");
	alternatecolor("alter_rows08"); 
	alternatecolor("alter_rows09");
}