列表瘦身&提示效果

<SCRIPT src="tooltip.js" type=text/jscript></SCRIPT>

<SCRIPT src="jQuery.js" type=text/jscript></SCRIPT>

<SCRIPT type=text/javascript>

$.fn.StringCut=function(len){

$(this).each(function(){

var allText = $(this).html();

var childText = $(this).children().html();

/* var viewText_pre = allText.substring(0,3); */

/* var viewText_aft = allText.substring(3,allText.lenght); */

/* var viewText = viewText_pre + " onmouseover=\"tooltip.show('" + childText + "');\" onmouseout=\"tooltip.hide();\" " + viewText_aft; */

$(this).children().attr("name",childText);

var showText = $(this).html();

if(childText.length>len)

{

childText = childText.substring(0,len)+ "...";

}

$(this).children().html(childText);

/* $(this).html(viewText); */

});

$(this).children().mouseover(function(){

/* var showText = $(this).html(); */

var showText = $(this).attr("name");

tooltip.show(showText);

});

$(this).children().mouseout(function(){

tooltip.hide();

});

}

$(document).ready(function() {

var newsText = $('.mainContent table').find('.new_arrowimage').parent().parent().next();

newsText.StringCut(30);

});

</SCRIPT>



tooltip.js

var tooltip=function(){

//debugger;

var id = 'tt';

var top = 3;

var left = 3;

var maxw = 200;

var speed = 10;

var timer = 20;

var endalpha = 95;

var alpha = 0;

var tt,t,c,b,h,length;

var ie = document.all ? true : false;

return{

show:function(v,w){

//debugger;

if(tt == null){

//debugger;

tt = document.createElement('div');

tt.setAttribute('id',id);

t = document.createElement('div');

t.setAttribute('id',id + 'top');

c = document.createElement('div');

c.setAttribute('id',id + 'cont');

b = document.createElement('div');

b.setAttribute('id',id + 'bot');

tt.appendChild(t);

tt.appendChild(c);

tt.appendChild(b);

document.body.appendChild(tt);

tt.style.opacity = 0;

tt.style.filter = 'alpha(opacity=0)';

document.onmouseover = this.pos;

}

tt.style.display = 'block';

c.innerHTML = v;

tt.style.width = w ? w + 'px' : 'auto';

if(!w && ie){

t.style.display = 'none';

b.style.display = 'none';

tt.style.width = tt.offsetWidth;

t.style.display = 'block';

b.style.display = 'block';

length = tt.offsetWidth;

}

if(tt.offsetWidth > maxw)

{

tt.style.width = maxw + 'px';

length = maxw;

}

h = parseInt(tt.offsetHeight) + top;

clearInterval(tt.timer);

tt.timer = setInterval(function(){tooltip.fade(1)},timer);

},

pos:function(e){

var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;

var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;

var browserlength = document.documentElement.clientWidth;

var browserheight = document.documentElement.clientHeight;

var diff = browserlength - (l + maxw);

var diffheight = browserheight - u;

if(diffheight > (h + top))

tt.style.top= (u + top) + 'px';

else

tt.style.top = (u - h) + 'px';

if(diff > left)

tt.style.left = (l + left) + 'px';

else

{

tt.style.left = (l + left - length) + 'px';

}

},

fade:function(d){

var a = alpha;

if((a != endalpha && d == 1) || (a != 0 && d == -1)){

var i = speed;

if(endalpha - a < speed && d == 1){

i = endalpha - a;

}else if(alpha < speed && d == -1){

i = a;

}

alpha = a + (i * d);

tt.style.opacity = alpha * .01;

tt.style.filter = 'alpha(opacity=' + alpha + ')';

}else{

clearInterval(tt.timer);

if(d == -1){tt.style.display = 'none'}

}

},

hide:function(){

clearInterval(tt.timer);

//tt.timer = setInterval(function(){tooltip.fade(-1)},timer);

tt.style.display = 'none'

}

};

}();

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最近更新：灵活定义列表项长度

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