如何延迟鼠标事件
如何给鼠标点击加上一个延迟，例如下面是点击图片 会给图片加边框的代码，如何做到点击1秒后才出现边框？
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html><title>JS+CSS给图片加上鼠标滑过的方框</title><style>.borderimage{border:5px solid #ffffff;}</style><script language="JavaScript">function borderit(which,color){//if IE 4+ or NS 6+if (document.all||document.getElementById){which.style.borderColor=color}}</script><><img src="http://pic10.nipic.com/20100926/2874022_122448725818_2.jpg" class="borderimage" onMousedown="borderit(this,'#1c1c1c')" onMouseup="borderit(this,'white')"></div></html><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html><title>JS+CSS给图片加上鼠标滑过的方框</title><style> .borderimage { border: 5px solid #ffffff; }</style><script language="JavaScript"> var v; function borderit(which, color) { //if IE 4+ or NS 6+ if (document.all || document.getElementById) { which.style.borderColor = color; } } function _borderit(which, color) { return function () { borderit(which, color); } } function myfunction(which, color) { v = setTimeout(_borderit(which,color), 1000); }; function stopfunction(which, color) { clearTimeout(v); borderit(which, color); }</script><div> <img src="http://pic10.nipic.com/20100926/2874022_122448725818_2.jpg" class="borderimage" onmousedown="myfunction(this,'#1c1c1c')" onmouseup="stopfunction(this,'white')"></div></html>