function checkFooter() {
	
	 var myWidth = 0, myHeight = 0;
	  if( typeof( window.innerWidth ) == 'number' ) {
    	//Non-IE
	    myHeight = window.innerHeight;
	  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
	    //IE 6+ in 'standards compliant mode'
    	myHeight = document.documentElement.clientHeight;
	  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
	    //IE 4 compatible
	    myHeight = document.body.clientHeight;
	  }
	//this is an app as browsers will deliver myHeight diff..
	var ob = document.getElementById("contheight").value; 				
	ob = parseInt(ob); 	
		if (ob > myHeight - 100) {
			ob += 70; 
			document.getElementById("home").style.top = ob; 						
		}	
}