Hi all, Well to tell u the truth i dont know anything about protype but eager to use it. i have written a function function al() { var scrollCovered=document.viewport.getScrollOffsets()['top'] +document.viewport.getHeight(); (document.viewport.getHeight()<=$('build').offsetHeight && scrollCovered<=$('container').offsetHeight*.96)?$ ('container').addClassName('tooLong'):$('container').removeClassName ('tooLong'); } a simple function to get the viewport,height and width. as you can see i just wanted to add or remove class property from div container. the thing is that the error generated is document.viewport is undefined + it is also not recognizing the "$()" syntax i think that as i am new here in "prototype" i dont know the way to install the "prototype-1.6.0.3.js" to my project and i was unable to find any way to do it on web. if i am right do tell me how to include or install or etc the prototype into my project or if not what should i do. Please help me
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