docs: function(t,i,isOver){
  		var inc = drag.x-drag.l, c = t.c[i], c2 = t.c[i+1]; 			
  		var w = c.w + inc;	var w2= c2.w- inc;	//their new width is obtained					
  		c.width( w + PX);	c2.width(w2 + PX);	//and set	
  		t.cg.eq(i).width( w + PX); t.cg.eq(i+1).width( w2 + PX);
  		if(isOver){c.w=w; c2.w=w2;}
  	}