// determine client side window size
var myWidth = 0, myHeight = 0;
if( typeof( window.innerWidth ) == 'number' ) {
	//Non-IE
	myWidth = window.innerWidth;
	myHeight = window.innerHeight;
} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
	//IE 6+ in 'standards compliant mode'
	myWidth = document.documentElement.clientWidth;
	myHeight = document.documentElement.clientHeight;
} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
	//IE 4 compatible
	myWidth = document.body.clientWidth;
	myHeight = document.body.clientHeight;
}
if( myWidth > 0 && myHeight > 0 ) {
	if (resolution_changed(myWidth, myHeight)) {
		//alert('resolution img src call');
		document.write( '<img src="resolution.php?resolution[x]='+myWidth+'&resolution[y]='+myHeight+'" border=0 height=0 width=1>');
	}
}