
var fieldlimiter={

			defaultoutput: "<b>[int]</b> characters remaining!", 

			uncheckedkeycodes: /(8)|(13)|(16)|(17)|(18)/, 

			limitinput:function(e, config){
				var e=window.event || e
				var thefield=config.thefield
				var keyunicode=e.charCode || e.keyCode
				if (!this.uncheckedkeycodes.test(keyunicode)){
					if (thefield.value.length>=config.maxlength){
						if (e.preventDefault)
							e.preventDefault()
						return false
					}
				}
			},

			showlimit:function(config){
				var thefield=config.thefield
				var statusids=config.statusids
				var charsleft=config.maxlength-thefield.value.length
				if (charsleft<0) //if user has exceeded input limit (possible if cut and paste text into field)
					thefield.value=thefield.value.substring(0, config.maxlength) //trim input
				for (var i=0; i<statusids.length; i++){
					var statusdiv=document.getElementById(statusids[i])
					if (statusdiv) //if status DIV defined
						statusdiv.innerHTML=this.defaultoutput.replace("[int]", Math.max(0, charsleft))
				}
				config.onkeypress.call(thefield, config.maxlength, thefield.value.length)
			},

			cleanup:function(config){
				for (var prop in config){
					config[prop]=null
				}
			},


			addEvent:function(targetarr, functionref, tasktype){
				if (targetarr.length>0){
					var target=targetarr.shift()
					if (target.addEventListener)
						target.addEventListener(tasktype, functionref, false)
					else if (target.attachEvent)
						target.attachEvent('on'+tasktype, function(){return functionref.call(target, window.event)})
					this.addEvent(targetarr, functionref, tasktype)
				}
			},

			setup:function(config){
				if (config.thefield){ //if form field exists
					config.onkeypress=config.onkeypress || function(){}
					config.thefield.value=config.thefield.value
					this.showlimit(config)
					this.addEvent([window], function(e){fieldlimiter.showlimit(config)}, "load")
					this.addEvent([window], function(e){fieldlimiter.cleanup(config)}, "unload")		
					this.addEvent([config.thefield], function(e){return fieldlimiter.limitinput(e, config)}, "keypress")
					this.addEvent([config.thefield], function(){fieldlimiter.showlimit(config)}, "keyup")
				}
			}

}
