var ns4 =false;
var op5 =false;
var op6 =false;
var agt =false;
var mac =false;
var ie =false;
var mac_ie =false;



function sniffBrowsers() {
	var ns4 = document.layers;
	var op5 = (navigator.userAgent.indexOf("Opera 5")!=-1) 
		||(navigator.userAgent.indexOf("Opera/5")!=-1);
	var op6 = (navigator.userAgent.indexOf("Opera 6")!=-1) 
		||(navigator.userAgent.indexOf("Opera/6")!=-1);
	var agt=navigator.userAgent.toLowerCase();
	var mac = (agt.indexOf("mac")!=-1);
	var ie = (agt.indexOf("msie") != -1); 
	var mac_ie = mac && ie;
}
function getElementHeight(Elem) {
	if (ns4) {
		var elem = getObjNN4(document, Elem);
		return elem.clip.height;
	} else {
		if(document.getElementById) {
			var elem = document.getElementById(Elem);
		} else if (document.all){
			var elem = document.all[Elem];
		}
		if (op5) { 
			xPos = elem.style.pixelHeight;
		} else {
			xPos = elem.offsetHeight;
		}
		return xPos;
	} 
}

function setBodySize() {
	
   var screenH = screen.height;
   var screenW = screen.width;

   if(document.all){
      availW = document.body.clientWidth;
      availH = document.body.clientHeight;
   }else{
      availW = innerWidth;
      availH = innerHeight;
   }
   
   sniffBrowsers();
   
	
	
   	availH -= getElementHeight("header");
   	availH -= 30;
   
   	var d= document.getElementById('bodyW');
//	d.style.width = "900px";
	d.style.height =availH + "px";

}

function ad_checkAbstractLength( o, o2 ) {
	var a = document.getElementById(o);
	var b = document.getElementById(o2);
	
	
	if ( !a ) {
		return;
	}
	if ( !b ) {
		return;
	}
	
	// Count the number of spaces to find the number of words (approx)


	spaces = 0;
	
	spaces=a.value.split(' ').length-1;
	spaces +=a.value.split('\n').length-1;
	spaces +=a.value.split('\t').length-1;
	
	+spaces;


	if ( spaces > 700 ){
		b.style.display = 'block';
	} else {
		b.style.display = 'none';		
	}
	
}