Well, one simple solution, that doesn't quite add the "...", but does prevent the <h2> from breaking into two lines would be to add this bit of css:
h2 {
height:some_height_in_px; /* this is the height of the line */
overflow:hidden; /* so that the second (or third, fourth, etc.)
line is not visible */
}
I gave it some more thought, and I came up with this solution, you have to wrap the textual contents of your h2 tag with another tag (e.g. a span) (or alternatively wrap the h2s with something that has the given height) and then you can use this sort of javascript to filter out the unneeded words:
var elems = document.getElementById('conainter_of_h2s').
getElementsByTagName('h2');
for ( var i = 0, l = elems.length; i < l; i++) {
var span = elems.item(i).getElementsByTagName('span')[0];
if ( span.offsetHeight > elems.item(i).offsetHeight ) {
var text_arr = span.innerHTML.split(' ');
for ( var j = text_arr.length - 1; j>0 ; j--) {
delete text_arr[j];
span.innerHTML = text_arr.join(' ') + '...';
if ( span.offsetHeight <=
elems.item(i).offsetHeight ){
break;
}
}
}
}