function slide_show(a){this.slide_content_num=1;this.slide_content_width=150;this.slide_content_height=120;this.slide_margin=(window.XMLHttpRequest)?0:20;this.slide_obj;this.move_counter=0;this.delay_slide=20;this.move_dist=5;this.elm_id=a;this.total_slide;this.moving=false;this.middle_slide=Math.ceil(this.slide_content_num/2);this.curr_slide=this.middle_slide;this.last_slide=this.curr_slide;this.nav_prev=false;this.nav_prev_disable=false;this.nav_next=false;this.nav_next_disable=false;this.init=function(){this.slide_obj=document.getElementById(this.elm_id+"_content");this.total_slide=this.slide_obj.getElementsByTagName("li").length};this.init();this.init_nav_prev=function(e,c,b,d){var f=document.getElementById(e);this.nav_prev=document.createElement("img");this.nav_prev.src=c;this.nav_prev.width=8;this.nav_prev.height=15;this.nav_prev.style.cursor="pointer";this.nav_prev.obj=this;this.nav_prev.onclick=function(){this.obj.show_prev()};this.nav_prev.onmouseover=function(){this.src=b};this.nav_prev.onmouseout=function(){this.src=c};if(d){this.nav_prev_disable=document.createElement("img");this.nav_prev_disable.src=d;this.nav_prev_disable.width=8;this.nav_prev_disable.height=15;this.nav_prev_disable.style.display=(this.curr_page==1)?"block":"none";f.appendChild(this.nav_prev_disable)}this.update_nav();f.appendChild(this.nav_prev)};this.init_nav_next=function(e,c,b,d){var f=document.getElementById(e);this.nav_next=document.createElement("img");this.nav_next.src=c;this.nav_next.width=8;this.nav_next.height=15;this.nav_next.style.cursor="pointer";this.nav_next.obj=this;this.nav_next.onclick=function(){this.obj.show_next()};this.nav_next.onmouseover=function(){this.src=b};this.nav_next.onmouseout=function(){this.src=c};if(d){this.nav_next_disable=document.createElement("img");this.nav_next_disable.src=d;this.nav_next_disable.style.display=(this.curr_page==1)?"block":"none";f.appendChild(this.nav_next_disable)}this.update_nav();f.appendChild(this.nav_next)};this.show_next=function(){if(this.moving==true){return""}if(this.curr_slide+this.middle_slide<=this.total_slide&&this.curr_slide+1>this.middle_slide){var c=this.getParentLeft();this.move_counter=c;var b=parseFloat(c-(this.slide_content_width+this.slide_margin));this.moving=true;this.move_to_right(b)}if(this.curr_slide+1<=this.total_slide){this.curr_slide++}this.update_nav()};this.update_nav=function(){if(this.nav_prev_disable){if(this.curr_slide==1){this.nav_prev.style.display="none";this.nav_prev_disable.style.display="block"}else{this.nav_prev.style.display="block";this.nav_prev_disable.style.display="none"}}if(this.nav_next_disable){if(this.curr_slide==this.total_slide||this.total_slide==0){this.nav_next.style.display="none";this.nav_next_disable.style.display="block"}else{this.nav_next.style.display="block";this.nav_next_disable.style.display="none"}}};this.move_to_right=function(b){if(b<=(this.move_counter-this.move_dist)){this.move_counter-=this.move_dist;document.getElementById(this.elm_id+"_content").style.left=this.move_counter+"px";var c=this;setTimeout(function(){c.move_to_right(b)},this.delay_slide)}else{this.moving=false}};this.showElement=function(b){if(document.getElementById(b)){document.getElementById(b).style.display="block"}};this.hideElement=function(b){if(document.getElementById(b)){document.getElementById(b).style.display="none"}};this.show_prev=function(){if(this.moving==true){return""}if(this.curr_slide-this.middle_slide>=1&&this.curr_slide-1<this.total_slide-this.middle_slide+1){var c=this.getParentLeft();this.move_counter=c;var b=parseFloat(c+(this.slide_content_width+this.slide_margin));this.moving=true;this.move_to_left(b)}if(this.curr_slide-1>=1){this.curr_slide--}this.update_nav()};this.move_to_left=function(b){if(b>=this.move_counter+this.move_dist){this.move_counter+=this.move_dist;document.getElementById(this.elm_id+"_content").style.left=this.move_counter+"px";var c=this;setTimeout(function(){c.move_to_left(b)},this.delay_slide)}else{this.moving=false}};this.getParentLeft=function(){return this.slide_obj.style.left?parseInt(this.slide_obj.style.left):0}}function getTopLeft(a){var b=curtop=0;if(a.offsetParent){b=a.offsetLeft;curtop=a.offsetTop;while(a=a.offsetParent){b+=a.offsetLeft;curtop+=a.offsetTop}}return{x:b,y:curtop}}function getCursorPos(g,f){var h=getTopLeft(f);var d,b,c,a;d=(!document.all)?g.pageX:(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft));d-=h.x;b=(!document.all)?g.pageY:(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop));b-=h.y;if(document.all){c=event.clientX;a=event.clientY}else{c=g.clientX;a=g.clientY}return{x:d,y:b,vx:c,vy:a}};