function toggle(div_id) {
	var el = document.getElementById(div_id);
	if ( el.style.display == 'none' ) {	el.style.display = 'block';}
	else {el.style.display = 'none';}
}
function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height=blanket_height/2-150;//150 is half popup's height
	popUpDiv.style.top = popUpDiv_height + 'px';
}
function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width=window_width/2-150;//150 is half popup's width
	popUpDiv.style.left = window_width + 'px';
}
function popup(windowname) {
	blanket_size(windowname);
	window_pos(windowname);
	toggle('blanket');
	toggle(windowname);		
}

var fadein=0, fadeout=100, opac;
var callFunc, Value;
var callFadeout

function fadeIn(fadeObj) {
	hideme('flashcontent');
	//hideme('searchform');
	//alert(fadeObj);	
	testObj = document.getElementById(fadeObj);
	Value=0;
	fadeout=100;					
	callFunc = setInterval('setOpacity()', 50);	
}

function fadeOut(fadeObj){
	showme('flashcontent');
	//showme('searchform');
	testObj = document.getElementById(fadeObj);
	Value=100;					
	callFadeout = setInterval('setOpacity()', 50);
}

function setOpacity()
{		
	//alert(Value);	
	if(Value==0 && fadein<100){		
		fadein+=10;		
		opac = fadein*0.01;
		if(fadein<100){
			testObj.style.opacity = opac;
			testObj.style.filter = 'alpha(opacity=' + (fadein-10) + ')';
		}
		else{
			clearInterval(callFunc);
			fadein=0;
		}							
	}
	else if(Value==100 && fadeout>0){		
			fadeout-=15;		
			opac = fadeout*0.01;
			//alert(opac);
			if(fadeout>0){
				//alert(opac);
				testObj.style.opacity = opac;
				testObj.style.filter = 'alpha(opacity=' + (fadeout-10) + ')';
			}
			else{
				//alert(fadeout);
				clearInterval(callFadeout);
				//fadeout=100;
				testObj.style.display = "none";
			}				
		}	
	
}