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HTML     
HEAD     
SCRIPT language=JavaScript       
var   col   =   new   Array();       
col[15]   =   '#000000';       
col[14]   =   '#111111';       
col[13]   =   '#222222';       
col[12]   =   '#333333';       
col[11]   =   '#444444';       
col[10]   =   '#555555';       
col[9]   =    '#666666';       
col[8]   =    '#777777';       
col[7]   =    '#888888';       
col[6]   =    '#999999';       
col[5]   =    '#AAAAAA';       
col[4]   =    '#BBBBBB';       
col[3]   =    '#CCCCCC';       
col[2]   =    '#DDDDDD';       
col[1]   =    '#EEEEEE';       
col[0]   =    '#FFFFFF';       
var i = col.length;   
var isOut = true;    
function Over()    
{    
if (i=0 && isOut) {i--;td.style.color=col[i];}    
else if(i= col.length && !isOut){i++;td.style.color=col[i]; }    
else{isOut = !isOut;}    
setTimeout('Over()',100);//渐变    
}           
/SCRIPT            
TABLETBODYTRTD id=td onmouseover=Over()鼠标放上看效果/TD/TR/TBODY/TABLE PRE/PRE