var navImgs = new Array("docsonly","contests","finddoc","wellres","publicity","bboard","issues","articles","help","about");
        function preloadNav() {
            for (i=0;i<navImgs.length;i++) {
                var imgX = new Image();
                var imgsrc = "http://www.doctorrelation.com/images/nav_" + navImgs[i] + ".gif";
                imgX.src = imgsrc;
            }
            for (i=0;i<navImgs.length;i++) {
                var imgX = new Image();
                var imgsrc = "http://www.doctorrelation.com/images/nav_" + navImgs[i] + "_over.gif";
                imgX.src = imgsrc;
            }
        }
        
        function swap(img,mod) {
            var imgsrc = "http://www.doctorrelation.com/images/nav_" + img + mod + ".gif";
            document.images[img].src = imgsrc;
        }

		
		function checkBoxValidate(cb,gp,grp,val){
		
		if(grp=="g2"){
			var gn=gp.g2
			var len=val
			var lx=gp.category
		}
		
		for (j=0; j < len ; j++ ){
				if(gn[j].checked==true){
					gn[j].checked = false
				}				
				if(j == cb){
					gn[j].checked=true
					lx.value=gn[j].value
				}
			
				
		}
			
}