function changeFontSize(inc){
                
                
                    var p = document.getElementsByTagName('div');
                    for (n = 0; n < p.length; n++) {
                        if (p[n].style.fontSize) {
                            var size = parseInt(p[n].style.fontSize.replace("px", ""));
                        }
                        else {
                            var size = 12;
                        }
                        p[n].style.fontSize = size + inc + 'px';
                    }
                }
function table_Highlight() {

	var rows = document.getElementsByName('#navtabs li');
	
	for(var i = 0; i < rows.length; i++) {
	
		rows[i].onmouseover = function() {
			this.className += ' hilite';
		}
		
		rows[i].onmouseout = function() {
			this.className = this.className.replace('hilite', '');
		}
	}
}

function toggleLayer( whichLayer,what )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  vis.display=what;
}


function show1()
{
toggleLayer('header1','block');
toggleLayer('header2','none');
toggleLayer('header3','none');
document.getElementById("tab2").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab2.jpg)";
document.getElementById("tab1").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab1-active.jpg)";
document.getElementById("tab3").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab3.jpg)";

}
function show2()
{
toggleLayer('header2','block');
toggleLayer('header1','none');
toggleLayer('header3','none');
document.getElementById("tab2").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab2-active.jpg)";
document.getElementById("tab1").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab1.jpg)";
document.getElementById("tab3").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab3.jpg)";
}
function show3()
{
toggleLayer('header3','block');
toggleLayer('header1','none');
toggleLayer('header2','none');
document.getElementById("tab2").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab2.jpg)";
document.getElementById("tab1").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab1.jpg)";
document.getElementById("tab3").style.backgroundImage = "url(/wp-content/themes/totalhomesecurity/images/header/tab3-active.jpg)";

}