/** * Scrolling vertical de texte, avec arrêt si survol * JS. CONAN * Eskape © 11/2003 * * nécessite DHTML Lib v1.0 (launcher.js) */ /* élément de scroll - encapsule l'élément à scroller * - width, height : dimensions de la boîte de scroll * - step : pas d'avancement du scroll (en pixels) */ function TxtScrollItem(width,height,step,bgcolor,border,bordercolor) { this.ancestor=AncestorDHTML; this.ancestor(null,"TxtScrollItem"); this.textwidth = width?width:320; this.textheight = height?height:200; this.step = step?step:2; this.textbgcolor=bgcolor?bgcolor:""; this.textborder=border?border:1; this.textbordercolor=bordercolor?bordercolor:"#FFFFFF"; this.scrolling=true; this.idMarker = this.id+'Marker'; this.idRoof = this.id+'Roof'; this.idTicker = this.id+'Ticker'; this.idTickerBg = this.id+'TickerBg'; this.open = function() { if(IE || NS5) { document.write('
'); document.write('
'); document.write('
'); if(NS5) { this.tablewidth=this.textwidth-2*this.textborder; this.tableheight=this.textheight-2*this.textborder; } else { this.tablewidth=this.textwidth; this.tableheight=this.textheight; } document.write(''); } } this.doScroll = function(){ if(this.scrolling){ if(NS4) { var ref = eval('document.'+this.idRoof+'.document.'+this.idTicker); ref.top+=-this.step; if(ref.top<-this.textcontentheight)ref.top=this.textheight; } if(IE) { var ref = document.getElementById(this.idTicker).style; ref.posTop+=-this.step; if(ref.posTop<-this.textcontentheight)ref.posTop=this.textheight; } if(NS5) { var ref = document.getElementById(this.idTicker).style; ref.top=parseInt(ref.top)-this.step; if(parseInt(ref.top)<-this.textcontentheight)ref.top=this.textheight; } } } this.init = function(){ if(NS4) { var refTicker=eval('document.'+this.idRoof+'.document.'+this.idTicker); var refMarker=eval('document.'+this.idMarker); var refRoof=eval('document.'+this.idRoof); var refTickerBg=eval('document.'+this.idTickerBg); this.textcontentheight=refTicker.clip.bottom-refTicker.clip.top; refRoof.left=refMarker.pageX; refRoof.top=reMarker.pageY+1*this.textborder; refTickerBg.left=refMarker.pageX+1*this.textborder; refTickerBg.top=refMarker.pageY+1*this.textborder; refRoof.clip.width=this.textwidth; refRoof.clip.height=this.textheight-2*this.textborder; refTicker.top=this.textheight; refTicker.clip.width=this.textwidth; refTicker.clip.height=this.textcontentheight; refRoof.visibility="show"; refTickerbg.visibility="show"; refTicker.visibility="show"; } if(IE || NS5) { var objTicker = new RefElement(this.idTicker); var objRoof = new RefElement(this.idRoof); var objMarker = new RefElement(this.idMarker); this.textcontentheight=getLayerHeight(objTicker); setLayerX(objRoof,getLayerPageX(objMarker)); setLayerY(objRoof,getLayerPageY(objMarker)); setLayerY(objTicker,this.textheight); clipLayer(objTicker, 0, 0, this.textwidth-4, this.textcontentheight); showLayer(objRoof); showLayer(objTicker); } } this.start = function(){this.scrolling=true;} this.stop = function(){this.scrolling=false;} addOnLoad(this.obj+'.init()'); return this; } /* moteur de scroll - commande et centralise l'action du scrolling * - tempo : temps entre chaque déplacement du scroll (en millisecondes) */ function TxtScroller(tempo) { this.ancestor=AncestorDHTML; this.ancestor(null,"TxtScroller"); this.tempo=tempo?tempo:50; this.items=new Array(); this.cpt=-1; this.opened=false; this.addItem = function(width,height,step,bgcolor,border,bordercolor){return this.items[this.items.length]=new TxtScrollItem(width,height,step,bgcolor,border,bordercolor);} this.open = function(){if(!this.opened&&this.items[this.cpt+1]){this.items[++this.cpt].open();this.opened=true;}} this.close = function(){if(this.opened){this.items[this.cpt].close();this.opened=false;}} this.doScroll = function(){for(i=0; i