/* global.js */

	var contentHeight = 0; 	// The total height of the content
	var visibleContentHeight = 0;	
	var scrollActive = false;
	
	var scrollHandleObj = false; // reference to the scroll handle
	var scrollHandleHeight = false;
	var scrollbarTop = false;
	var eventYPos = false;

	var scrollbuttonActive = false;
	var scrollbuttonDirection = false;
	var scrollbuttonSpeed = 4; // How fast the content scrolls when you click the scroll buttons(Up and down arrows)
	var scrollTimer = 10;	// Also how fast the content scrolls. By decreasing this value, the content will move faster	
	
	var scrollMoveToActive = false;
	var scrollMoveToYPosition = false;
	
	var operaBrowser = false;
	if(navigator.userAgent.indexOf('Opera')>=0)operaBrowser=1;
		
	function scrollDiv_startScroll(e) {
		if(document.all && !operaBrowser)e = event;
		scrollbarTop = document.getElementById('scrolldiv_theScroll').offsetTop;
		eventYPos = e.clientY;
		scrollActive = true;
	}
	
	function scrollDiv_stopScroll() {
		scrollActive = false;
		scrollbuttonActive = false;
		scrollMoveToActive = false;
	}
	
	function scrollDiv_scroll(e) {
		if(!scrollActive)return;
		if(document.all && !operaBrowser)e = event;
		if(e.button!=1 && document.all)return;
		var topPos = scrollbarTop + e.clientY - eventYPos; 
		if(topPos<0)topPos=0;
		if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1)topPos = visibleContentHeight-(scrollHandleHeight+4);
		document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
		document.getElementById('scrolldiv_content').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px' 
	}
	
	/*
	Click on the slider
	Move the content to the this point
	*/
	function scrolldiv_scrollMoveToInit(e) {		
		if(document.all && !operaBrowser)e = event;
		scrollMoveToActive = true;
		scrollMoveToYPosition = e.clientY - document.getElementById('scrolldiv_scrollbar').offsetTop;
		if(document.getElementById('scrolldiv_theScroll').offsetTop/1 > scrollMoveToYPosition) scrollbuttonDirection = scrollbuttonSpeed*-2; else  scrollbuttonDirection = scrollbuttonSpeed*2;
		scrolldiv_scrollMoveTo();	
	}
	
	function scrolldiv_scrollMoveTo() {
		if(!scrollMoveToActive || scrollActive)return;
		var topPos = document.getElementById('scrolldiv_theScroll').style.top.replace('px','');
		topPos = topPos/1 + scrollbuttonDirection;
		if(topPos<0){
			topPos=0;
			scrollMoveToActive=false;
		}
		if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1){
			topPos = visibleContentHeight-(scrollHandleHeight+4);	
			scrollMoveToActive=false;
		}
		if(scrollbuttonDirection<0 && topPos<scrollMoveToYPosition-scrollHandleHeight/2)return;	
		if(scrollbuttonDirection>0 && topPos>scrollMoveToYPosition-scrollHandleHeight/2)return;			
		document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
		document.getElementById('scrolldiv_content').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px' 		
		setTimeout('scrolldiv_scrollMoveTo()',scrollTimer);		
	}
	
	function cancelEvent() {
		return false;			
	}

	function scrolldiv_scrollButton() {
		if(this.id=='scrolldiv_scrollDown')scrollbuttonDirection = scrollbuttonSpeed; else scrollbuttonDirection = scrollbuttonSpeed*-1;
		scrollbuttonActive=true;
		scrolldiv_scrollButtonScroll();
	}
	
	function scrolldiv_scrollButtonScroll() {
		if(!scrollbuttonActive)return;
		var topPos = document.getElementById('scrolldiv_theScroll').style.top.replace('px','');
		topPos = topPos/1 + scrollbuttonDirection;
		if(topPos<0){
			topPos=0;
			scrollbuttonActive=false;
		}
		if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1){
			topPos = visibleContentHeight-(scrollHandleHeight+4);	
			scrollbuttonActive=false;
		}	
		document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
		document.getElementById('scrolldiv_content').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px' 			
		setTimeout('scrolldiv_scrollButtonScroll()',scrollTimer);
	}
	function scrolldiv_scrollButtonStop() {
		scrollbuttonActive = false;
	}
	
	
	function scrolldiv_initScroll() {
		visibleContentHeight = document.getElementById('scrolldiv_scrollbar').offsetHeight ;
		contentHeight = document.getElementById('scrolldiv_content').offsetHeight - visibleContentHeight;		
		scrollHandleObj = document.getElementById('scrolldiv_theScroll');
		scrollHandleHeight = scrollHandleObj.offsetHeight;
		scrollbarTop = document.getElementById('scrolldiv_scrollbar').offsetTop;		
		document.getElementById('scrolldiv_theScroll').onmousedown = scrollDiv_startScroll;
		document.body.onmousemove = scrollDiv_scroll;
		document.getElementById('scrolldiv_scrollbar').onselectstart = cancelEvent;
		document.getElementById('scrolldiv_theScroll').onmouseup = scrollDiv_stopScroll;
		if(document.all)document.body.onmouseup = scrollDiv_stopScroll; else document.documentElement.onmouseup = scrollDiv_stopScroll;
		document.getElementById('scrolldiv_scrollDown').onmousedown = scrolldiv_scrollButton;
		document.getElementById('scrolldiv_scrollUp').onmousedown = scrolldiv_scrollButton;
		document.getElementById('scrolldiv_scrollDown').onmouseup = scrolldiv_scrollButtonStop;
		document.getElementById('scrolldiv_scrollUp').onmouseup = scrolldiv_scrollButtonStop;
		document.getElementById('scrolldiv_scrollUp').onselectstart = cancelEvent;
		document.getElementById('scrolldiv_scrollDown').onselectstart = cancelEvent;
		document.getElementById('scrolldiv_scrollbar').onmousedown = scrolldiv_scrollMoveToInit;
	}
	/*
	Change from the default color
	*/	
	function scrolldiv_setColor(rgbColor) {
		document.getElementById('scrolldiv_scrollbar').style.borderColor = rgbColor;
		document.getElementById('scrolldiv_theScroll').style.backgroundColor = rgbColor;
		document.getElementById('scrolldiv_scrollUp').style.borderColor = rgbColor;
		document.getElementById('scrolldiv_scrollDown').style.borderColor = rgbColor;
		document.getElementById('scrolldiv_scrollUp').style.color = rgbColor;
		document.getElementById('scrolldiv_scrollDown').style.color = rgbColor;
		document.getElementById('scrolldiv_parentContainer').style.borderColor = rgbColor;
	}
	/*
	Setting total width of scrolling div
	*/
	function scrolldiv_setWidth(newWidth) {
		document.getElementById('body_scrolldiv').style.width = newWidth + 'px';
		document.getElementById('scrolldiv_parentContainer').style.width = newWidth-30 + 'px';		
	}
	
	/*
	Setting total height of scrolling div
	*/
	function scrolldiv_setHeight(newHeight) {
		document.getElementById('body_scrolldiv').style.height = newHeight + 'px';
		document.getElementById('scrolldiv_parentContainer').style.height = newHeight + 'px';
		document.getElementById('scrolldiv_slider').style.height = newHeight + 'px';
		document.getElementById('scrolldiv_scrollbar').style.height = newHeight-30 + 'px';		
	}
	/*
	Setting new background color to the slider 
	*/
	function setSliderBgColor(rgbColor) {
		document.getElementById('scrolldiv_scrollbar').style.backgroundColor = rgbColor;
		document.getElementById('scrolldiv_scrollUp').style.backgroundColor = rgbColor;
		document.getElementById('scrolldiv_scrollDown').style.backgroundColor = rgbColor;
	}
	/*
	Setting new content background color
	*/
	function setContentBgColor(rgbColor) {
		document.getElementById('scrolldiv_parentContainer').style.backgroundColor = rgbColor;
	}
	
	/*
	Setting scroll button speed
	*/
	function setScrollButtonSpeed(newScrollButtonSpeed) {
		scrollbuttonSpeed = newScrollButtonSpeed;
	}
	/*
	Setting interval of the scroll
	*/
	function setScrollTimer(newInterval) {
		scrollTimer = newInterval;
	}

/* 

	Blankwin function 
	written by Alen Grakalic, provided by Css Globe (cssglobe.com)
	please visit http://cssglobe.com/post/1281/open-external-links-in-new-window-automatically/ for more info
	
*/

this.blankwin = function(){
	var hostname = window.location.hostname;
	hostname = hostname.replace("www.","").toLowerCase();
	var a = document.getElementsByTagName("a");	
	this.check = function(obj){
		var href = obj.href.toLowerCase();
		return (href.indexOf("http://")!=-1 && href.indexOf(hostname)==-1) ? true : false;				
	};
	this.set = function(obj){
		obj.target = "_blank";
		obj.className = "external";
	};	
	for (var i=0;i<a.length;i++){
		if(check(a[i])) set(a[i]);
	};		
};

this.addEvent = function(obj,type,fn){
	if(obj.attachEvent){
		obj['e'+type+fn] = fn;
		obj[type+fn] = function(){obj['e'+type+fn](window.event );}
		obj.attachEvent('on'+type, obj[type+fn]);
	} else {
		obj.addEventListener(type,fn,false);
	};
};

/*
 * Load events
 */
addEvent(window,"load",blankwin);

function initializeScrollbar() {
	scrolldiv_setWidth(300);
	scrolldiv_setHeight(330);
	scrolldiv_initScroll();
}


function isUndefined(v) {
    var undef;
    return v===undef;
}

function initializeScrollbar(thisPage) {
	if (isUndefined(thisPage)) {
		scrolldiv_setWidth(300);
		scrolldiv_setHeight(330);
	} else {
		switch(thisPage) {

			case 'contactUs':
				scrolldiv_setWidth(400);
				scrolldiv_setHeight(380);
				break;
				
			default:
				scrolldiv_setWidth(300);
				scrolldiv_setHeight(330);
				break;
		}
	}
	scrolldiv_initScroll();
}

/* show/hide layers */

	function HideContent(d) {
		if(d.length < 1) { return; }
		document.getElementById(d).style.display = "none";
	}
	function ShowContent(d) {
		if(d.length < 1) { return; }
		document.getElementById(d).style.display = "block";
	}
	function ReverseContentDisplay(d) {
		if(d.length < 1) { return; }
		if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
		else { document.getElementById(d).style.display = "none"; }
	}