Note: Updated March 16th, 06′. Fixed padding issue so right padding is correctly applied to the scroller.
Description: As its name suggests, this is a up-down scroller that pauses between each message! The look of the scroller is completely styled using external CSS, including the dimensions. Easily create a single line scroller just by adjusting the scroller’s height appropriately!
Demo:
/*Example message arrays for the two demo scrollers*/
var pausecontent=new Array()
pausecontent[0]=’JavaScript Kit
Comprehensive JavaScript tutorials and over 400+ free scripts!’
pausecontent[1]=’Coding Forums
Web coding and development forums.’
pausecontent[2]=’CSS Drive
Categorized CSS gallery and examples.’
var pausecontent2=new Array() pausecontent2[0]=’News.com: Technology and business reports‘ pausecontent2[1]=’CNN: Headline and breaking news 24/7‘ pausecontent2[2]=’BBC News: UK and international news‘
/*********************************************** * Pausing up-down scroller- © Dynamic Drive (www.dynamicdrive.com) * This notice MUST stay intact for legal use * Visit http://www.dynamicdrive.com/ for this script and 100s more. ***********************************************/
function pausescroller(content, divId, divClass, delay){ this.content=content //message array content this.tickerid=divId //ID of ticker div to display information this.delay=delay //Delay between msg change, in miliseconds. this.mouseoverBol=0 //Boolean to indicate whether mouse is currently over scroller (and pause it if it is) this.hiddendivpointer=1 //index of message array for hidden div document.write('
‘) var scrollerinstance=this if (window.addEventListener) //run onload in DOM2 browsers window.addEventListener(”load”, function(){scrollerinstance.initialize()}, false) else if (window.attachEvent) //run onload in IE5.5+ window.attachEvent(”onload”, function(){scrollerinstance.initialize()}) else if (document.getElementById) //if legacy DOM browsers, just start scroller after 0.5 sec setTimeout(function(){scrollerinstance.initialize()}, 500) }
// ——————————————————————- // initialize()- Initialize scroller method. // -Get div objects, set initial positions, start up down animation // ——————————————————————-
pausescroller.prototype.initialize=function(){ this.tickerdiv=document.getElementById(this.tickerid) this.visiblediv=document.getElementById(this.tickerid+”1″) this.hiddendiv=document.getElementById(this.tickerid+”2″) this.visibledivtop=parseInt(pausescroller.getCSSpadding(this.tickerdiv)) //set width of inner DIVs to outer DIV’s width minus padding (padding assumed to be top padding x 2) this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth-(this.visibledivtop*2)+”px” this.getinline(this.visiblediv, this.hiddendiv) this.hiddendiv.style.visibility=”visible” var scrollerinstance=this document.getElementById(this.tickerid).onmouseover=function(){scrollerinstance.mouseoverBol=1} document.getElementById(this.tickerid).onmouseout=function(){scrollerinstance.mouseoverBol=0} if (window.attachEvent) //Clean up loose references in IE window.attachEvent(”onunload”, function(){scrollerinstance.tickerdiv.onmouseover=scrollerinstance.tickerdiv.onmouseout=null}) setTimeout(function(){scrollerinstance.animateup()}, this.delay) }
// ——————————————————————- // animateup()- Move the two inner divs of the scroller up and in sync // ——————————————————————-
pausescroller.prototype.animateup=function(){ var scrollerinstance=this if (parseInt(this.hiddendiv.style.top)>(this.visibledivtop+5)){ this.visiblediv.style.top=parseInt(this.visiblediv.style.top)-5+”px” this.hiddendiv.style.top=parseInt(this.hiddendiv.style.top)-5+”px” setTimeout(function(){scrollerinstance.animateup()}, 50) } else{ this.getinline(this.hiddendiv, this.visiblediv) this.swapdivs() setTimeout(function(){scrollerinstance.setmessage()}, this.delay) } }
// ——————————————————————- // swapdivs()- Swap between which is the visible and which is the hidden div // ——————————————————————-
pausescroller.prototype.swapdivs=function(){ var tempcontainer=this.visiblediv this.visiblediv=this.hiddendiv this.hiddendiv=tempcontainer }
pausescroller.prototype.getinline=function(div1, div2){ div1.style.top=this.visibledivtop+”px” div2.style.top=Math.max(div1.parentNode.offsetHeight, div1.offsetHeight)+”px” }
// ——————————————————————- // setmessage()- Populate the hidden div with the next message before it’s visible // ——————————————————————-
pausescroller.prototype.setmessage=function(){ var scrollerinstance=this if (this.mouseoverBol==1) //if mouse is currently over scoller, do nothing (pause it) setTimeout(function(){scrollerinstance.setmessage()}, 100) else{ var i=this.hiddendivpointer var ceiling=this.content.length this.hiddendivpointer=(i+1>ceiling-1)? 0 : i+1 this.hiddendiv.innerHTML=this.content[this.hiddendivpointer] this.animateup() } }
pausescroller.getCSSpadding=function(tickerobj){ //get CSS padding value, if any if (tickerobj.currentStyle) return tickerobj.currentStyle["paddingTop"] else if (window.getComputedStyle) //if DOM2 return window.getComputedStyle(tickerobj, “”).getPropertyValue(”padding-top”) else return 0 }
//new pausescroller(name_of_message_array, CSS_ID, CSS_classname, pause_in_miliseconds)
new pausescroller(pausecontent, "pscroller1", "someclass", 3000)
document.write("
“)
new pausescroller(pausecontent2, “pscroller2″, “someclass”, 2000)