![Use js to imitate word format brush function to implement code [Recommended]_javascript skills](http://files.jb51.net/upload/20090723230833568.gif)
]<script>
//辅助函数
function $(id){return document.getElementById(id);}
var tb = $('t');
var selectedCell = tb.rows[0].cells[0];//当前被选择的单元格。
var brushing = false;//是否正在使用刷子
function setBold(){
selectedCell.style.fontWeight = "bold";
}
function setItalic(){
selectedCell.style.fontStyle = "italic";
}
function setUnderline(){
selectedCell.style.textDecoration = "underline";
}
function setLineThrough(){
selectedCell.style.textDecoration = "line-through";
}
function setRedColor(){
selectedCell.style.color = "red";
}
//格式拷贝
function copyFormat(source, dist){
dist.style.fontWeight = source.style.fontWeight;
dist.style.fontStyle = source.style.fontStyle;
dist.style.textDecoration = source.style.textDecoration;
dist.style.color = source.style.color;
}
function doBrush(e){
if(!brushing){
$('tip').style.display = '';
}
else{
$('tip').style.display = 'none';
}
brushing = !brushing;
}
document.onkeydown=function(){
window.status = event.keyCode;
switch(event.keyCode){
case 37: {
moveLeft();
break;
}
case 38: {
moveUp();
break;
}
case 39: {
moveRight();
break;
}
case 40: {
moveDown();
break;
}
}
}
function moveLeft(){
if(selectedCell&&selectedCell.previousSibling){
selectedCell.className='';
selectedCell = selectedCell.previousSibling;
selectedCell.className = 'selected';
}
}
function moveRight(){
if(selectedCell&&selectedCell.nextSibling){
selectedCell.className='';
selectedCell = selectedCell.nextSibling;
selectedCell.className = 'selected';
}
}
function moveUp(){
if(selectedCell&&selectedCell.parentNode&&selectedCell.parentNode.previousSibling){
selectedCell.className='';
var _index = selectedCell.cellIndex;
selectedCell = selectedCell.parentNode.previousSibling.cells[_index];
selectedCell.className = 'selected';
}
}
function moveDown(){
if(selectedCell&&selectedCell.parentNode&&selectedCell.parentNode.nextSibling){
selectedCell.className='';
var _index = selectedCell.cellIndex;
selectedCell = selectedCell.parentNode.nextSibling.cells[_index];
selectedCell.className = 'selected';
}
}
document.body.onload = function(){
for(var i=0; i<tb.rows.length; i++){
for(var j=0; j<tb.rows[i].cells.length; j++){
tb.rows[i].cells[j].onclick = function(){
if(brushing){
copyFormat(selectedCell, this);
}
};
}
}
}
</script>
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